"The Rolls Royce of Reception"
By Richard T. Ammon
Last updated: 9/23/08 - 738 Copyright 1999 - 2008   All Rights Reserved                                               
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Abbott Abbott Radio Mfg. Co. Abbott 8 Compartment Type February 1927 8 8 - 201A or 199 12 x 28 2 - Drum 3 N (L) (Abbott) Thick Square NIF NIF NIF Harry Abbott   Chicago
  "    " "    "    "    "    "    "    "    " Abbott 8 Table Type February 1927 8 8 - 201A or 199 12 x 28 2 - Drum 3 N (L) (Abbott) Thick Square NIF NIF NIF Harry Abbott   "    "    "
Acme Acme Apparatus Company Long Wave  30 K.C. Transformer May 1924 n / a n / a n / a n / a n / a n / a n / a Acme 30 K.C. Open Frame 42 Heavy Laminated Iron n / a     Cambridge, Mass.
  "    "    "    "    "    "    "    "    " Eight Tube Superheterodyne May 1924 8 8 - 201A or WD12 or 199 7 x 30    engraved 2 5 - 6 N (L) Acme 30 K.C. Open Frame 42 Heavy Laminated Iron Two Duo-Laterals Coils     "    "    "    "    "    "
Acme - Benson n / a Benson Reflexed Super-Heterodyne February 28, 1925 6 [+ 1] * 6 - 199 or 201A (7 x 24) 2 3 N L (Acme Type R3) Small Rectangular 500 Iron NIF Thomas W. Benson   NIF
Acme - Custom-Built n / a Seven Tube Custom-Built Superheterodyne (1926) 7 7 -  (10 x 24) 2 1 N NIF (Acme Type R3) Small Rectangular   Iron NIF      
Acme - Sleeper n / a 7-Tube Super-Heterodyne January 31, 1924 7 7 - 199 or 201A 7 x 24 3 3 N NIF NIF NIF NIF NIF NIF M. B. Sleeper    
Adams n / a Eight-Tube Superheterodyne October 1924 8 8 - 201A 10 (?) x 30  2 7 1 - V L or W Adams Flattened Side                      Tuna Can NIF NIF NIF Captain H. J. Adams   Camp Vail, N. J.
Aero Aero Products, Inc. Aero Coil Oscillator October 1925 n / a n / a n / a n / a n / a n / a n / a n / a n / a n / a n / a n / a     Chicago
Aero Dyne Aero Radio Co. Aerodyne Standard (1924) 7 7 - 201A NIF 2 3 N L NIF             Detroit
  "    "    " "    "    "    "    " Aerodyne Premier (1924) 7 7 - 201A NIF 2 (3) (N) (L) NIF             "    "
  "    "    " "    "    "    "    " Aerodyne - The Luke (1924) 7 7 - 201A NIF 2 (3) (N) (L) NIF             "    "
Aircore (Radiophone Equipment Co., The) Aircore Super Eight September 1924 8 NIF   2     NIF Aircore     Air Air      
Airkore Radiophone Equipment Co. Airkore Super-Heterodyne Kit November 1924 8 NIF NIF NIF NIF NIF NIF Airkore Cylindrical NIF Air Air     Philadelphia
All American  Rauland Mfg. Co. Long Wave Radio Frequency Transformer Model R-110 May 1924 n / a n / a n / a n / a n / a n / a n / a All American Misc 30 Iron Air     Chicago
  "    "    "    " "    "    "    "    "    " Super-Fine Kit September 1924 8 8 - 201A n / a n / a n / a n / a n / a All American Tuna Can / Misc 30 Iron Air     "    "    "
  "    "    "    " "    "    "    "    "    " Super-Fine Super Heterodyne September 1924 8 8 - 201A or WD12 or 199  7 x 30 2 5 N L All American Tuna Can / Misc 30 Iron Air   A. Elkins "    "    "
  "    "    "    " "    "    "    "    "    " "Music Room" Super-Heterodyne  September 1925 8 8 - 199 or 201A 7 x 18 2 2 N TL All American Tuna Can / Misc 30 Iron Air     "    "    "
All-American - Brush n / a Kodak Size Midget 45 K.C. Best Super Spring 1925 7 7 - 199 5 3/4 x 11 2 4 1 - V TL or W All American Tuna Can / Misc 30 Iron Air Gerald M. Best W. P. Brush, Designer San Francisco
All American - Calcaterra n / a Practical Super-Het May 1925 8 8 - 199 7 x 18 2       All American Tuna Can / Misc 30 Iron Air   Joseph Calcaterra New York City
All American - Custom-Built n / a Custom-Built Three-Dial Superheterodyne (1925) 8 8 - 201A (7 x 36) 3 9 1 -V                   & 1 - MA NIF All American Tuna Can / Misc 30 Iron Air      
All American - Deluxe Standard Radio Supply All American Deluxe 8-Tube Super Spring 1926 8 8 - 199  7 x 18 2 2 N TL All American Tuna Can / Misc 30 Iron Air     Chicago
All American - Randolph Randolph Radio Corporation 8-Tube Super-Heterodyne October 1924 8 8 - 201A or WD12 or 199  8 x 36 2 5 N TL All-American Tuna Can / Misc 30 Iron Air     Chicago
AMACO American Apparatus Co. (Amacodyne CN-8) November 1925 (8)                           Richmond, Indiana
  "    "    "   "    "    "    "    "    "    "    " (Amacodyne CN-9) November 1925 (9)                           "    "    "    "    "    "
American Radio American Radio Manufacturing Co. Super-Assembly 7 Super-Heterodyne September 1924 7                           Kansas City, Mo.
  "    "    "    "    "   "    "    "    "    "    "    "    "    "    "    "    " Acme Double 'A' Super-Heterodyne September 1924 7                           "    "    "    "    "
Amplex Amplex Instrument Labs. Cockaday Improved ?? Super-Heterodyne Kit September 1924                             New York City
Armstrong Armstrong, Major Edwin Howard Five Tube Super Auto-Dyne May 16,1918 5             Armstrong     Resistance Coupled Resistance Coupled Major Edwin Howard Armstrong, inventor   Paris, France
  "    "    " "    "    "    "    "    "     "     "     "     " Six Tube Super Auto-Dyne Summer 1918 6             "    "    "    "     Resistance Coupled Resistance Coupled   "    "    "    "    "    "    "   "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Eight Tube Super Auto-Dyne Summer 1918 8             "    "    "    "     Resistance Coupled Resistance Coupled   "    "    "    "    "    "    "   "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Five Tube Super Heterodyne ??? 1919 5             "    "    "    "           "    "    "    "    "    "    "   Yonkers
  "    "    " "    "    "    "    "    "     "     "     "     " Seven Tube Super Auto-Dyne February 1920 7             "    "    "    "     Resistance Coupled Resistance Coupled   "    "    "    "    "    "    "   New York City
  "    "    " "    "    "    "    "    "     "     "     "     " Seven Tube Super Auto-Dyne Summer 1920 ?? 7             "    "    "    "     Resistance Coupled Resistance Coupled   "    "    "    "    "    "    "   "    "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Super Heterodyne Using Audio Transformers Summer 1920 ?? 8             "    "    "    "     Resistance Coupled Resistance Coupled   "    "    "    "    "    "    "   "    "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Six Tube 2nd Harmonic Super Heterodyne Fall 1921 ?? 6             "    "    "    "   60 Air Air   "    "    "    "    "    "    "   "    "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Five Tube 2nd Harmonic Reflexed Super Heterodyne February 1923 5             "    "    "    "   " " "   "    "    "    "    "    "    "   "    "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Four Tube 2nd Harmonic Reflexed Super Heterodyne February 1923 4             "    "    "    "   " " "   "    "    "    "    "    "    "   "    "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Six Tube 2nd Harmonic Reflexed Super Heterodyne Spring / Fall 1923 5 / 6             "    "    "    "   60 Air Air   "    "    "    "    "    "    "   "    "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Portable Six Tube Super Heterodyne December 1923 6             "    "    "    "   " " "   "    "    "    "    "    "    "   "    "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Super-Regenerative-Heterodyne Combination February 1924 4             "    "    "    "           "    "    "    "    "    "    "   "    "    "    "    "
  "    "    " "    "    "    "    "    "     "     "     "     " Eight Tube Transformer-Coupled Super Heterodyne Summer 1924 8             "    "    "    "   60 ?? ?? ??   "    "    "    "    "    "    "   "    "    "    "    "
Atlantic & Pacific Radio Co. Atlantic & Pacific Radio Co. Improved and Practical Super-Heterodyne January 1924 8 (201A) NIF 2 (1) N NIF (Atlantic & Pacific         Radio Co.) NIF NIF NIF NIF Chief Engineer & Staff   New York City
Atwater Kent (Atwater Kent Mfg. Co.) (Eight Tube Superheterodyne) (1924) 8                           (Philadelphia)
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Baby Grand n / a Six-Tube Baby Grand Super-Heterodyne January 1925 6 6 - 199 7 x 18 2 1 N TL [Haynes-Griffin] Square (100) Iron n / a Paul Green   Chicago
  "    "    "    " n / a Improved Six-Tube Baby Grand Super-Heterodyne March 1925 6 6 - 199 8 x 15.5 2 3 N TL (Silver Marshall) Misc 30 Iron Specifically, Iron Paul Green   Chicago
Baby Heterodyne n / a Single Tube Baby Heterodyne February 1924 1                       John B. Rathbun   (San Francisco)
  "    "    "    "    "    " n / a Baby Heterodyne With Two Audios May 1924 3                       John B. Rathbun   "    "    "    "    "
  "    "    "    "    "    " n / a Baby Heterodyne With RF and Audio Stages June 1924 5 5 - 201A or 199 (7 x 18) 4 or 2 3 N W Not Used Not Used NIF n / a n / a John B. Rathbun   "    "    "    "    "
Baby Heterodyne II n / a Baby Heterodyne II September 1924 1                       John B. Rathbun   "    "    "    "    "
Baby Super Four n / a Four Tube Baby Super July 11, 1925 4 [+ 1] *     3                 J. E. Anderson   "    "    "    "    "
Baby Super Six n / a Six Tube Baby Super July 11, 1925 6 [[+ 1] *     3                 J. E. Anderson   "    "    "    "    "
Badger Radio Badger Radio Super-Heterodyne Kits December 1924                             Milwaukee, Wis.
Baldwin Nathaniel Baldwin Headphone Co. Nine Tube Superheterodyne 1924 9 NIF (7 x 24) 2 5 1 - V NIF (Baldwin) NIF NIF NIF NIF NIF   Salt Lake City
Baldwin-Pacific Baldwin-Pacific & Co. Pacific "S-H" Transformers # 5 & #10 April 1924 n / a n / a n / a n / a n / a n / a n / a Baldwin-Pacific Short Cylindrical 45 (Iron) (Air) (Gerald M. Best ??)   San Francisco
  "    "    "    "    " "    "    "    "    "    "    " Pacific Ranger "Pacific Quintet" Super-Het Kit November 1924 n / a n / a n / a n / a n / a n / a n / a Baldwin-Pacific Short Cylindrical 45 (Iron) (Air) (Gerald M. Best ??)   "    "    "    "    "
  "    "    "    "    " "    "    "    "    "    "    " Pacific Ranger "Pacific Quintet" Super-Het November 1924 8 8 - 199 6 x 26 to 30 2 3 1 - V TL Baldwin-Pacific Short Cylindrical 45 (Iron) (Air) (Gerald M. Best ??)   "    "    "    "    "
  "    "    "    "    " "    "    "    "    "    "    " Pacific Ranger Super-Het Spring 1926 8 7 - 199                   & 1 - 201A (6 x 26) 2 3 n/a TL Baldwin-Pacific Short Cylindrical 45 (Iron) (Air) (Gerald M. Best ??)   "    "    "    "    "
  "    "    "    "    " "    "    "    "    "    "    " Pacific Rainbow Super Het  February 1926                              
Baldwin-Pacific - Best n / a  Best Modified Superheterodyne Shielded Model (Fall 1925) 7 7 - 199 10 x 21 3 2 1 - V W Remler Cylindrical 45 Iron Air Gerald M. Best   "    "    "    "    "    "    "    "
Baldwin Pacific - Brush n / a Kodak Size Midget 45 K.C. Best Super Spring 1925 7 7 - 199 5 3/4 x 11 2 4 1 - V TL or W Baldwin-Pacific Short Cylindrical 45 NIF NIF Gerald M. Best W. P. Brush, Designer San Francisco
Baldwin Pacific - Hall n / a Compact Super-Heterodyne April 1925 8             Baldwin-Pacific Short Cylindrical 45 NIF NIF D. J. Hall    
Band-Isolator   Band-Isolator June 1929 5   7 x 24                   S. Gordon Taylor   New York City
Barawik Co. Barawik Co. High Grade Eight Super-Heterodyne July 1924 8             Columbia ??             Chicago
Bongart n / a Four Tube Super-Heterodyne July 1924 4                       B. J. Bongart   New York City
  "    "    " "    " Four Tube Super-Heterodyne September 12, 1925 4                           "    "    "    "    "
Boone Boone Corporation,  J. T.    Super Heterodyne Transformer Kit August 1924 n / a n / a n / a n / a n / a n / a n / a Boone Cylindrical 36 Air Air John T. Boone   Detroit
  "    " "    "    "    "    "    "    "    " Eight Tube Super Heterodyne August 1924 9 7 - 201A (7 x 36) 2 8 1 -V                   & 1 - MA TL Boone Cylindrical 36 Air Air John T. Boone   "    "    "
  "    " "    "    "    "    "    "    "    " Seven Tube Super Heterodyne February 1926 7 199 7 x 18 2 2 N TL Boone Cylindrical (36) Air Air John T. Boone   "    "    "
Branston Branston, Chas. A. Branston Transformer Kit No.R-99 March 1924 n / a n / a n / a n / a n / a n / a n / a Branston Cylindrical 57 (Iron) Air     Buffalo, N. Y.
  "    "    "  "    "    "    "    "    " Branston R-95 Super-Heterodyne Knockdown ^ (March) 1924 ^ 7 7 - 199 (8 x 24) 2 4 (1 - V        optional) L or W Branston Cylindrical 57 (Iron) Air     "    "    "    "
  "    "    "  "    "    "    "    "    " Branston R-99 Super-Heterodyne  March 1924 7 7 - 199 (8 x 24) 2 4 (1 - V        optional) L or W Branston Cylindrical 57 (Iron) Air     "    "    "    "
  "    "    "  "    "    "    "    "    "  Branston Transformer Kit No. R-199 November 1924 n / a 7 - 199 n / a n / a n / a n / a n / a Branston Misc (57) Iron Air     "    "    "    "
  "    "    "  "    "    "    "    "    " Branston R-199 Reflexed Super-Heterodyne  November 1924 7 7 - 199 or 201A 7 x 21 2 2 N L Branston Misc (57) Iron Air     "    "    "    "
  "    "    "  "    "    "    "    "    " Branston R-199 Non-Reflexed Super-Heterodyne  November 1924 7 7 - 199 or 201A 7 x 21 2 2 N L Branston Misc (57) Iron Air     "    "    "    "
Branston - Brush n / a Kodak Size Midget 45 K.C. Best Super Spring 1925 7 7 - 199 5 3/4 x 11 2 4 1 - V TL or W Branston Cylindrical 57 (Iron) Air Gerald M. Best W. P. Brush, Designer San Francisco
Branston - Ultradyne n / a Branston R-99 Ultradyne March 1924 7 7 - 201A 7 x 30 2 4 (1 - V        optional) L or W Branston Cylindrical 57 (Iron) Air     "    "    "    "
Braxton-King Mississippi Valley Radio Company Standard Air-core and Hi-Mu Coils ?? Fall 1925 n / a     n / a       Mississippi Valley           Radio Company             St. Louis
  "    "    "    "   "    "    "    "    "    "    "    "    "    "    "    " (Screen Grid Superheterodyne) 1927                 "    "    "    "    "    "             "    "    "
  "    "    "    "   "    "    "    "    "    "    "    "    "    "    "    " Braxton-King Shielded, Plug-In IFs December 1927 n / a     n / a         "    "    "    "    "    " Cylindrical   Air Air     "    "    "
  "    "    "    "   "    "    "    "    "    "    "    "    "    "    "    " Braxton-King Shield Grid Eight November 1928 8               "    "    "    "    "    " "    "    "           "    "    "
  "    "    "    "   "    "    "    "    "    "    "    "    "    "    "    " Braxton-King Shield Grid Eight Conversion March 1929 8 Screen Grid (8 x 24) 2 - Drum 2 N     "    "    "    "    "    " "    "    "           "    "    "
  "    "    "    "   "    "    "    "    "    "    "    "    "    "    "    " Screen Grid A. C. Superheterodyne September 1929                 "    "    "    "    "    " "    "    "           "    "    "
  "    "    "    "   "    "    "    "    "    "    "    "    "    "    "    " Braxton-King Model A November 1929 9               "    "    "    "    "    "             "    "    "
  "    "    "    "   "    "    "    "    "    "    "    "    "    "    "    " Braxton-King Model B Tuner Unit November 1929 5 [Tuner]               "    "    "    "    "    "             "    "    "
Bremer Tully Bremer Tully Mfg. Co. B-T Oscillator Coupler June 1924 n / a n / a n / a n / a n / a n / a n / a Bremer Tulley n/a n / a n / a n / a     Chicago
  "    "    "    "  "    "    "    "    "    "    "    " B-T Super-Heterodyne Transformer Kit July 1, 1924 NIF NIF NIF NIF NIF NIF NIF Bremer Tulley NIF NIF NIF NIF     "    "    "
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Brunswick Brunswick Balke Collender Co. & Radio Corporation Of America Beaux Art Radio / Phono Combination ^^ October 1924 ^^ NIF NIF NIF NIF NIF NIF NIF NIF NIF NIF NIF NIF     Chicago & Camden, N. J.
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Tudor Model 160  [Radiola / Phono Combination] ^^ October 1924 ^^ 6 6 - 199 Model 813            Six Tube Panel 2 2 1 - Optional Internal   Loop R.C.A.  6 Tube Reflexed Catacomb 60 Air n / a Edwin H. Armstrong            & Harry Houck   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Hudson Model BR-260  [Radio / Phono Combination] ^^ October 1924 ^^ 6 6 - 199 Model 813            Six Tube Panel 2 2 1 - Optional Internal   Loop R.C.A.  6 Tube Reflexed Catacomb 60 Air n / a Edwin H. Armstrong            & Harry Houck   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Empire Model 360  [Radio / Phono Combination] ^^ October 1924 ^^ 6 6 - 199 Model 813            Six Tube Panel 2 2 1 - Optional Internal   Loop R.C.A.  6 Tube Reflexed Catacomb 60 Air n / a Edwin H. Armstrong            & Harry Houck   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model 60  [Radio / Phono Combination] ^ 1925 ^ 6 6 - 199 Model 813            Six Tube Panel 2 2 1 - Optional Internal   Loop R.C.A.  6 Tube Reflexed Catacomb 60 Air n / a Edwin H. Armstrong            & Harry Houck   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model 460  [Radio / Phono Combination] ^ 1925 ^ 6 6 - 199 Model 813            Six Tube Panel 2 2 1 - Optional Internal   Loop R.C.A.  6 Tube Reflexed Catacomb 60 Air n / a Edwin H. Armstrong            & Harry Houck   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Panatrope Model PR-46-C  [Radiola / Phono Combination] 1926 ^ 7 [+ 1] (199 & 171) Radiola 28           Seven                Tube Panel 2 - Drum 2 1 - Optional Internal   Loop R.C.A. 7 Tube Catacomb 60 Air n / a Edwin H. Armstrong   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Panatrope Model PR-148-C  [Radiola / Phono Combination] 1926 ^ 6 6 - 199 Model 813            Six Tube Panel 2 2 1 - Optional Internal   Loop R.C.A.  6 Tube Reflexed Catacomb 60 Air n / a Edwin H. Armstrong            & Harry Houck   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Panatrope Model PR-148-C  [Radiola / Phono Combination] 1926 ^ 7 [+ 1] (199 & 171) Radiola 28           Seven                Tube Panel 2 - Drum 2 1 - Optional Internal   Loop R.C.A. 7 Tube Catacomb 60 Air n / a Edwin H. Armstrong   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Cordova 8 - 2D [Dry Battery]  [Radiola / Phono Combination] ^ November 1926 7 [+ 1] (199 & 171) Radiola 28           Seven                Tube Panel 2 - Drum 2 1 - Optional Internal   Loop R.C.A. 7 Tube Catacomb 60 Air n / a Edwin H. Armstrong   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Cordova 6  [Radiola / Phono Combination] ^ January 1927 6 6 - 199 Model 813            Six Tube Panel 2 2 1 - Optional Internal   Loop R.C.A.  6 Tube Reflexed Catacomb 60 Air n / a Edwin H. Armstrong            & Harry Houck   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Cordova 8  [Radiola / Phono Combination] ^ January 1927 8 (199 & 171) Eight                 Tube Panel 2 - Drum 2 1 - Optional Internal   Loop R.C.A. 8 Tube Catacomb 60 Air n / a Edwin H. Armstrong   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model BR 18 January 1927 7 [+ 1] (199 & 171) Radiola 28           Seven                Tube Panel 2 - Drum 2 1 - Optional Internal   Loop R.C.A. 7 Tube Catacomb 60 Air n / a Edwin H. Armstrong   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Panatrope Model PR-138-C  [Radiola / Phono Combination] December 1927 7 [+ 1] (199 & 171) Radiola 28           Seven                Tube Panel 2 - Drum 2 1 - Optional Internal   Loop R.C.A. 7 Tube Catacomb 60 Air n / a Edwin H. Armstrong   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model 3NC8 [A-C]  Highboy ^ October 1928 8 [+ 1 A-C] Y227, 171, 280 Walnut 1 - Drum 1 n / a Short Indoor R.C.A. Under Chassis Rectangle 180 KC (Air) n / a     "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model 5NO [A-C]  Table Model October 1928 8 [+ 1 A-C] Y227, 171, 280 Walnut 1 - Drum 1 n / a Short Indoor R.C.A. Under Chassis Rectangle 180 KC (Air) n / a     "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model 5WO [A-C]  Table Model   8 [+ 1 A-C] Y227, 171, 280 Walnut 1 - Drum 1 n / a Short Indoor R.C.A. Under Chassis Rectangle 180 KC (Air) n / a     "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model 5NC8 [A-C]  Highboy October 1928 8 [+ 1 A-C] Y227, 171, 280 Walnut 1 - Drum 1 n / a Short Indoor R.C.A. Under Chassis Rectangle 180 KC (Air) n / a     "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model 148  [Radio / Phono Combination] ^ 1928 ^ 8 ^ (199, 171) (Eight                   Tube Panel) 2 - Drum 2 1 - Optional Internal   Loop R.C.A. (8 Tube Catacomb) (60) Air n / a Edwin H. Armstrong   "    "    "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "   "    "    "    " Model 3NW8 [A-C]  Highboy January 1929 8 [+ 2  A-C] Y227, 250, 281 Walnut 1 - Drum 1 n / a Short Indoor R.C.A. Under Chassis Rectangle 180 KC (Air) n / a     "    "    "    "    "    "    "    "
Bryant n / a Homebuilder's Seven - A Super Set April 1929 7 201A, 171 for DC or 227, 222, 171 for AC 7 x 24 2 - Drum 1 N W Homemade Upright Coils 214 Air n / a B. B. Bryant   NIF
Brinkman n / a Three Level Super-Heterodyne May 1924 12                       Henry Brinkman   Pelham, N. Y.
Brunn n / a A Choice Superheterodyne January 1927                         Brunsten Brunn    
Brush n / a Six Tube Het-Duo-Gen December 1924                         C. E. Brush   Chicago
BSM NIF BSM Super 8 (1926) 8 NIF NIF NIF NIF NIF   NIF NIF NIF NIF NIF     NIF
Buell Buell Manufacturing Company Flewelling Uniformer May 1924 n / a n / a n / a n / a n / a n / a n / a Buell Module NIF (Air) (Air) Edmond T. Flewelling   Chicago
Buell - Flewelling Eight "    "    "    "    "    "    "    "    "    " Flewelling 8 January 28,1928 8 201A, 171 (7 x 24) 2 2 N TL Buell Module NIF (Air) (Air) Edmond T. Flewelling   Chicago
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Camfield Camfield Radio Manufacturing Company Super Selective Nine March 1927 9  [5 ******] 201A,           200A, & 112 7 x 30 3 2 N S & L W Rusco No. 95 IFs & Rusco Band Pass Filter  Vertical Tuna Can / Module 95 Air Air     Chicago
  "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Super Selective Ten November 1927 10 [6******]     3 2 N   Rusco No. 95 IFs & Rusco Band Pass Filter  Vertical Tuna Can / Module 95 Air Air     "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Super Selective Nine 'Revised' January 1928 [9  [5 ******])     3 2 N S & L W Rusco No. 95 IFs & Rusco Band Pass Filter  Vertical Tuna Can / Module 95 Air Air     "    "    "
Carborundum Company Carborundum Company Carborundum Superheterodyne January 1927 8 [+ 1] *     3       Madison or Victoreen Suggested Tuna Can 150     Dr. M. L. Hartmann & John R. Meagher, developers***   Niagara Falls, N. Y.
CELCO Central Engineering Laboratories    Celco Double "D" Coil IFs August 1925 n / a n / a n / a n / a n / a n / a n / a Central Engineering Laboratories    Tuna Can 66 ?? Air Air     Chicago
Columbia Columbia Radio Corporation New Columbia IFs, Oscillator Coupler, and Audios Fall 1924 n / a n / a n / a n / a n / a n / a n / a Columbia Misc 38 "Semi-iron" None     Chicago
  "    "    " "    "    "    "    "    "    "    "    "    " Semi-Finished 8-Tube Super-Heterodyne August 1925 8 8 - 201A 7 x 30 2 3 N TL or W Columbia Misc 38 "Semi-iron" None     "    "    "
  "    "    "   "    "    "    "    "    "    "    "    "    " Semi-Finished 8-Tube Super-Heterodyne Deluxe August 1925 8 8 - 201A 7 x 30 2 5 N TL Columbia Misc 38 "Semi-iron" None     "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    " (Improved 9-Tube Super  Deluxe) 1928 9 201A & 112                  or 171 or 250 7 x 30 2 1 N TL or W Columbia Misc 38 "Semi-iron" None     "    "    "
Columbia - Hamilton Carr "    "    "    "    "    "    "    "    "    " Semi-Finished 8-Tube Super-Heterodyne (Fall 1926) 9 9 - 201A 7 x 30 2 3 N TL or W Columbia Misc 38 "Semi-iron" None     "    "    "
  "    "    "    "    "    "    "    " "    "    "    "    "    "    "    "    "    " Improved 9 Tube Super September 1927 9 201A & 112                  or 171 or 250 7 x 30 2 1 N TL or W Columbia Misc 38 "Semi-iron" None     "    "    "
Columbia - Randolph   "    "    "    "    "    "    "    "    "    " Semi-Finished 8-Tube Super-Heterodyne October 1924 8 8 - 201A or 199 7 x 30 2 5 N TL Columbia Misc 38 "Semi-iron" None     "    "    "
  "    "    "    "    "    "    "    "    "    "    "    "    "    "    "    "    " Super-Heterodyne December 1924 8             Columbia Misc 38 "Semi-iron" None     "    "    "
  "    "    "    "    "    "    "       "    "    "    "    "    "    "    "    "    " Semi-Finished 8-Tube Super-Heterodyne Deluxe August 1925 8 8 - 201A 7 x 30 2 5 N TL Columbia Misc 38 "Semi-iron" None     "    "    "
Columbia - Ultradyne Columbia Radio Corporationm Ultradyne L-1 Super-Het Fall 1925 8 8 - 201A 7 x 30 2 5 N   Columbia Misc 38 "Semi-iron" None     "    "    "
Como Como Apparatus Corporation Six-Tube Super-Heterodyne June 1924 6 6 - 199 or 201A Breadboarded No panel 2 2 N NIF Como / General Radio Misc / Module 30 Iron Air     Boston /                 Manchester, NH
  "    "    " "    "    "    "    "    "    "    "    "    " Nine-Tube Super-Heterodyne June 1924 9 6 - 199 or 201A Breadboarded No panel 2 (2) N NIF Como / General Radio Misc / Module 30 Iron Air     "    "    "    "    "    "
Consomello Mazda Radio Manufacturing Co. Consomello Fall 1925 8 8 - 201A (7 x 24) 2 2 (1 -V) W St. James Tall Red Top                Vacuum Tube 240 Air in Vacuum Air in Vacuum Robert T. St. James   Cleveland
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " Grand Fall 1925 8                           "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " (Portable ^) 1926 ^                             "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " Special Summer 1926                             "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " (Consomello ^) 1926 ^ 8 ^ 8 - 201A (7 x 24) 2 2 NIF W St. James Tall Red Top                Vacuum Tube 240 Air in Vacuum Air in Vacuum Robert T. St. James   "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " (Deluxe ^) 1926 ^ 8 ^ 8 - 201A (7 x 24) 2 2 NIF W St. James Tall Red Top                Vacuum Tube 240 Air in Vacuum Air in Vacuum Robert T. St. James   "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " (Grand ^) 1926 ^ 10 ^ 10 - 201A (7 x 24) 2 2 NIF W St. James Tall Red Top                Vacuum Tube 240 Air in Vacuum Air in Vacuum Robert T. St. James   "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " (Portable ^) 1926 ^                             "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " (Premier ^) 1926 ^ 8 ^ 8 - 201A (7 x 24) 2 2 NIF W St. James Tall Red Top                Vacuum Tube 240 Air in Vacuum Air in Vacuum Robert T. St. James   "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " (Royal ^) 1926 ^ 8 ^ 8 - 201A (7 x 24) 2 2 NIF W St. James Tall Red Top                Vacuum Tube 240 Air in Vacuum Air in Vacuum Robert T. St. James   "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    " (Special ^) 1926 ^ 10 ^ 10 - 201A (7 x 24) 2 2 NIF W St. James Tall Red Top                Vacuum Tube 240 Air in Vacuum Air in Vacuum Robert T. St. James   "    "    "
Consrad Consrad Company Genuine Standard Super-Heterodyne November 1924 (8) (201A) (8 x 40) 2 5 1 -V                   & 1 - MA L NIF NIF NIF NIF NIF    F. F. Webb   New York City
  "    "    "   "    "    "    "    "    " Consrad Strobodyne January 1928 8   11 x 27         (Radio Electric Laboratory)   120 ??     Lucien Chretien     [translated by R. E. Lacault]   "    "    "    "    "
Daven Super Amplifier Daven Radio Corporation Daven R-3 Super Amplifier  July 1925 3 201A n / a n / a n / a n / a n / a Daven Module / Separate Parts n / a Resistance Coupled n / a     Newark, NJ
Daven Resistance Coupled -                         Popular Mechanics n / a Popular Mechanics 1927 Resistance Coupled Eight October 1926 8 5 - Daven            MU-20               & 3 - 201A 7 x 30 2 2  1 - V    [Double Range] TL Daven 3-Stage                  Super Amp Module / Misc 45 n / a Air     New York City
Dean - Receptrad Charles A. Dean Eight Tube Superheterodyne [SH8-1] (1924) 8 8 - 201A 7 x 40 2 6 N L Radio Receptor Cylindrical 100 "Comunited Iron" Air Lieut. Victor Greiff Charles A. Dean New York City
DeLand DeLand Radio Manufacturing Company Famous One Spot R. F. Transformer November 1927 n / a n / a n / a n / a n / a n / a n / a DeLand Standing Rectangle NIF (Air) NIF     Milwaukee, Wis.
Domino Domino Radio Service Super- Heterodyne Kits May 1924                             New York City
Du Bois William L. Du Bois 8-Tube Super-Heterodyne November 1924 8 NIF NIF NIF NIF NIF NIF NIF NIF NIF NIF NIF NIF   Philadelphia
  "    "    " "    "    "    "    "    " Monarch 4-Tube Super-Het February 1925 4 NIF NIF NIF NIF NIF L NIF NIF NIF NIF NIF NIF   "    "    "    "
Duplex Duplex Engine Governor Co., Inc. RK Supplimentary Kit September 1924                             Brooklyn, N. Y.
  "    " "    "    "    "    "    "    "    "    "    "    " Super-Het January 1925               Duplex Engineering             "    "    "    "    "
DX Seven n / a DX Seven Super Heterodyne       (7 x 21) 2 2 1 -V                   & 1 - MA                  
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Eastern Coil Eastern Coil Corporation Eastern Pickle Bottle Coupler Model FC January 1925 n / a n / a n / a n / a n / a n / a n / a n / a Eight-sided                  Tuning Coil   n / a n / a A. O' Connor   New York City
Eclipse NIF Eclipse Superheterodyne March 1927                              
Eight-In-Line Boulderadio Eight-In-Line September 1927 8 8 - 201A 7 x 24 2 2 N TL Eight-In-Line Wooden Module 85  Air Air     Boulder, CO
  "    "    "   "   "    "    "   " Six Tube Unit of the Eight-In-Line November 1927 6 6 - 201A 7 x 24 2 2 N TL Eight-In-Line Wooden Module 85  Air Air     "    "    "    "
E. I. S. / Leutz Experimenter's Information Service, Inc. Armstrong Super-Heterodyne July 1922 8  ??     4       R-C   99 ? Resistance Coupled Resistance Coupled Charles R. Leutz   Long Island, NY
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " (Model L  Resistance Coupled] 1922 10             R-C / L-C   99 Resistance or Inductance Coupled Resistance or Inductance Coupled  "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Model L  [Transformer Coupled] October 1922 8             RCA UV-1714 Misc 30 Iron ??    "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Model L  [Transformer Coupled] October 1922 10             RCA UV-1714 Misc 30 Iron ??    "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Model C April 1923 8     2 or 3       RCA UV-1716 / General Radio / Acme Open Frame / E. I. S. Misc or Tuna Can 43 /         50 / 47 Iron or Air Iron or Air  "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Model C-7 Standard September 1924 7             E. I. S. Tuna Can 47 Air Air  "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Model C-7 Improved October 1924 7               "   "   "   Tuna Can 47 Air Air  "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Model C-7 Deluxe (Note 20) 7               "   "   "   Tuna Can 47 Air Air  "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Model C-7 Special   7               "   "   "   Tuna Can 47 Air Air  "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " (C-3 Custom Super-Heterodyne) (1925) 7               "   "   "   Tuna Can 47 Air Air  "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Navy Model C-10 Super-Heterodyne February 1925 10               "   "   "   Tuna Can 47 Air Air  "    "    "    "   "    "    "    "    "
  "    "    "    " "    "    "    "    "    "    "    "    "    "    "    "    " Universal Transoceanic Type L- 6 September 1926                          "    "    "    "   "    "    "    "    "
E. I. S. - Colburn n / a Colburn Superheterodyne                                
Electrical Research ^ Electrical Research and Mfg. Co. ^ Super Heterodyne ^ 1924 ^                              
Ellis n / a "Using What Junk You Have In Making a Super-Heterodyne" December 1923 6                        "    "    "    "    "   "    "    "    "
"    " Ellis Electrical Laboratory Ellis D Coil November 1927                             Chicago
Ensall Ensall Radio Laboratory Model 780 Super Heterodyne September 1929 7                           Warren, Ohio
ERLA Electrical Research Laboratories Town and Country ^  Model S14 1925 ^ 6             ERLA     Misc       Chicago
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Feldstern-McCusker Radio American Radio Stores, Inc. Five Tube Baby Super-Het November 1924 5                           Philadelphia
Flewelling Frequency Changer n/a Flewelling Frequency Changer September 1925 2 2 - 201A (7 x 10) 2 1 N L n / a n / a n / a n / a n / a Edmond T. Flewelling   Chicago
Flewelling 8 (Flewelling Radio Company) Flewelling 8 January 28, 1928 8 7 - 201A                & 1 - 171A (7 x 24) 2 2 N TL Flewelling NIF NIF NIF NIF Edmond T. Flewelling   Chicago
Fournier n / a Fournier Four Filter Eight Tube Super-Heterodyne March 1925 8     3           60     Jacques Fournier   Chicago
Framingham Framingham Company, The Framingham K. D. Super Heterodyne (1924) 8             Framingham Tall Cylindrical 50 Air Air     Farmington, Mass.
Frank Everlast Radio Products Co. Frank Super-Kit November 1, 1924 8             Frank Cylindrical           New York City
Foltz Foltz Radio Company New Five Tube Wonder Circuit August 1923 5                           New Castle, Penna.
Foy n / a Seven Tube Super-Heterodyne On Wheels August 1924 7             (Unknown)         "Barney" Foy   Washington, D. C.
Frederick Tustin Radio Frederick Super-Heterodyne May 4, 1924 NIF NIF NIF NIF NIF NIF NIF (Frederick) NIF NIF NIF NIF (Frederick)   San Francisco
G. A. Sales, The G. A. Sales, The Super Heterodyne May 1924                             St. Paul, Minn.
General, The General Radio Repair Co. "The General" Super-Heterodyne January 1925 7 7 - 199 (7 x 28) 2 2 N   Silver Marshall Aluminum Square 60 Steel   McMurdo Silver   Chicago
  "    "    "    "    "   "    "    "    "    "    "    "    " Medium Frequency Transformer - Type 271 July 1924 n / a     n / a       General Radio Misc 33 Iron Air     "    "    "    "    "    "
  "    "    "    "    "   "    "    "    "    "    "    "    " 30 Kilocycle Superheterodyne [1st Model] Fall 1925 7             General Radio Misc 33 Iron Air     "    "    "    "    "    "
  "    "    "    "    "   "    "    "    "    "    "    "    " 30 Kilocycle Superheterodyne [2nd Model] Fall 1925 7             General Radio Misc 33 Iron Air     "    "    "    "    "    "
General Radio General Radio Company Six Tube Super Heterodyne April 1924 6             General Radio Misc 33 Iron Air     Cambridge, Mass.
General Radio - Anderson n / a DX Super-Heterodyne November 1925 8 *             General Radio Misc 33 Iron Air J. E. Anderson    
General Radio - Bernard n / a Bernard Portable April 3, 1926 8 199. 201A 7 x 18         General Radio Misc 33 Iron Air Herman Bernard    
General Radio - Best n / a  Best Modified Superheterodyne Shielded Model (Fall 1925) 7 7 - 199 10 x 21 3 2 1 - V W Remler Cylindrical 45 Iron Air Gerald M. Best   "    "    "    "    "    "    "    "
General Radio - Brunn n / a Five Tube Super-Heterodyne 00…………………. 5 [+ audio]             General Radio Misc 33 Iron Air   Brunsten Brunn  
General Radio - Fenway Everyman's n / a Fenway Everyman's Receiver  February 1926 9  [4 ******] 9 - 201A 8 X 28 3 2 1 -V                   & 1 - MA W General Radio Misc 33 Iron Air Leo Fenway   New York City
General Radio - Funkerburk Funderburk Engineering Corp. Superheterodyne Receiver (1925) 7             General Radio Misc 33 Iron Air     Boston
General Radio - Hollingshead n / a Super-Heterodyne De Luxe  March 1926 8 7 - 199 & 1 - 120 7 x 18 2 2 Y   General Radio Misc 33 Iron Air Paul Hollingshead J. E. Anderson  
General Radio - QST     August 1924                              
General Radio - St. Louis Daily Globe St. Louis Daily Globe-Democrat St. Louis Daily Globe-Democrat Superheterodyne Summer 1926 6 6 - 199 7 x 21 2 3 N W General Radio Misc 33 Iron Air St. Louis Daily           Globe-Democrat Staff   St. Louis
Gilbert - Remler Gilbert Gilbert Superheterodyne Model Z5 (1925) 8 8 - 199           Remler Cylindrical 45 Iron   Gerald. M. Best    
Goldsmith n / a Short-Wave Code Signals Super-Heterodyne May 1928 5 [+ 1]     4       (Unknown)   50     Lloyd T. Goldsmith    
Globe Globe Radio Equipment Company Super-Heterodyne Kit  "Original Globe Coils" August 1924               Globe Radio Equipment             New York City
Godley n / a Godley Super-Heterodyne December 1921                         Paul F. Godley    
  "    " n / a Paragon Super-Heterodyne February 1923 9                         "    "    "    "    "    
Graybar ^ Graybar Electric Company ^ Model 330 [A-C] ^ 1929 ^ 9             RCA             ????
  "    "    "   "    "    "    "    "    "    "    "    " Model 330 [A-C] Console 1929 9             "    "             ????
  "    "    "   "    "    "    "    "    "    "    "    " Model 340 [A-C] ^ 1929 ^ 9             "    "             ????
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPE FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Haddaway Haddaway Incorporated Haddaway Resistance Coupling Unit January 1925 n / a     n / a       Haddaway Flat Sqaure   Resistance       Los Angeles
Halldorson Halldorson Company, The Halldorson Shield Grid Super 8  [DC] Fall 1928 8             Halldorson             Chicago
  "    "    "    "   "    "    "    "    "    "    "    "    " Halldorson Shield Grid Super 8  [AC] Fall 1928 8             "    "    "    "             "    "    "
Halowat  (possibly) Hallock and Watson Halowat Superhet  (possibly) (1924) 8             Remler Cylindrical 45 Iron   Gerald M. Best   Portland, OR
Hanscom Hanscom Radio Devices Superunit November 1924 4 [+ 2]   9 x 18         Hanscom Misc   Module   Allan T. Hanscom   Woonsocket, R. I.
  "    "    "   "    "    "    "    "    "    "    " Hanscom Four-Tube Super Set Spring 1926 4   7 x 10          "   "   "   "           "    "    "    "    "   "    "    "    "    "    "
  "    "    "   "    "    "    "    "    "    "    " Hanscom Six-Tube Super Set Spring 1926 6 6 - 201A 7 x 18 1 or 2 4 ? 1 - V    "   "   "   " Exposed diamond-weave & large cylinder   Air Air   "    "    "    "    "   "    "    "    "    "    "
  "    "    "   "    "    "    "    "    "    "    " Hanscom Superunit Auto Set Spring 1926 4              "   "   "   "           "    "    "    "    "   "    "    "    "    "    "
Hardy & Sons Hardy & Sons, L. H.  Toroidal Transformer  ["Toro-Tran"] February 1924 n / a     n / a       Hardy   90         New York City
Haynes Haynes-Griffin Radio Service, Inc. Haynes Multi-Unit Super-Heterodyne September 1923 7             McMurdo Silver-Wound Vertical Tuna Can 99 Air Air A. J. Haynes                           / McMurdo Silver   New York City
Haynes Griffin Haynes-Griffin Radio Service, Inc. Simplified Super-Heterodyne January 1924 7           TL Haynes-Griffin Tall Square 100 Air Air A. J. Haynes   New York City
  "    "    "    "    "   "    "    "    "    "    "    "    "    "    " "New and Improved Radio Apparatus" February 1924 n / a n / a n / a n / a n / a n / a n / a Haynes-Griffin Tall Square 100 Air Air "   "   "   "   "   "    "    "    "    "
  "    "    "    "    "   "    "    "    "    "    "    "    "    "    " Laboratory Matched Transformers April 1924 n / a n / a n / a n / a n / a n / a n / a Haynes-Griffin Conical 150 Air Air "   "   "   "   "   "    "    "    "    "
  "    "    "    "    "   "    "    "    "    "    "    "    "    "    " De Luxe Super-Heterodyne - Model B February 1925 9 [6] 199                  & [3] 201A 7 x 18 3       Haynes-Griffin Conical 150 Air Air "   "   "   "   "   "    "    "    "    "
  "    "    "    "    "   "    "    "    "    "    "    "    "    "    " De Luxe Super-Heterodyne - Model A May 1925 9 201A 7 x 18 3       Haynes-Griffin Conical 150 Air Air "   "   "   "   "   "    "    "    "    "
  "    "    "    "    "   "    "    "    "    "    "    "    "    "    " Super-Heterodyne Portable  August 1925 8             Haynes-Griffin Conical 150 Air Air "   "   "   "   "   "    "    "    "    "
Haynes Griffin - Cockaday n / a Superheterodyne Reflex January 1925 8             Haynes Griffin Cone 150 Air Air Lawrence M. Cockaday   New York City
(Heteroplex) Elvin Radio Co. (Deluxe Heteroplex) March 1926                              
Hetrola Hetrola Radio Co. Ltd. R-199-P [Portable] August 1925 7                            
HFL High Frequency Laboratories H. F. L. Transformers April 1926 n / a n / a n / a n / a n / a n / a   HFL Flat Rectangle 37 Iron Air Ernst Tyrman   Chicago
  " "    "     "     "     "     "     "     "     " Nine-in-Line Super September 1926 9             HFL Flat Rectangle 37 Iron Air Ernst Tyrman   "    "    "
  " "    "     "     "     "     "     "     "     " N27 Nine-in-Line March 1927 9             HFL Flat Rectangle 37 Iron Air (Ernst Tyrman)   "    "    "
  " "    "     "     "     "     "     "     "     " N28 Nine-in-Line September 1927 9             HFL Flat Rectangle 37 Iron Air Ernst Tyrman   "    "    "
  " "    "     "     "     "     "     "     "     " Improved Nine-In-Line ??? September 1927 9             HFL Flat Rectangle 37 Iron Air Ernst Tyrman   "    "    "
  " "    "     "     "     "     "     "     "     " N28 Nine-in-Line  [AC or DC] January 1928 9             HFL Flat Rectangle 37 Iron Air     "    "    "
  " "    "     "     "     "     "     "     "     " HFL Model 10 Screen Grid Isotone - Custom Built June 1, 1928 10             HFL Flat Rectangle 450         "    "    "
  " "    "     "     "     "     "     "     "     " Special Nine with the New 250 Power Amplifier February 1929 9             HFL Flat Rectangle 37 Iron Air     "    "    "
  " "    "     "     "     "     "     "     "     " Mastertone Laboratory-Made Receiver  (A-C) September 1929 11             HFL     Impedance       "    "    "
HFL - Citizens Radio Call Book n / a Citizen's Super 8 Using HFL Isotone IF Amp November 1928 8             HFL Flat Rectangle 37 Iron Air     New York City
Hilco A. E. Hill Mfg. Co. Super Hilco-Dyne Kit August 1924 7 7 - 201A or 199 7 x 28 2 3 N W A. E. Hill Mfg. Co. Tuna Can 40 Air Air     Atlanta
  "    "   "    "    "    "    "    " Hilco Oscillator & Oscillator Coupler Spring 1926 n / a n / a n / a n / a n / a n / a   "    "    "    "    "    " Tuna Can n / a n / a n / a     "    "    "
  "    "   "    "    "    "    "    " Replacement Hilco IF Transformers Spring 1926 n / a n / a n / a n / a n / a n / a   "    "    "    "    "    " Tuna Can 40 Air Air     "    "    "
  "    "   Super Hilco-Dyne Nine November 1927 9             "    "    "    "    "    " Tuna Can 40 Air Air     "    "    "
  "    " Algonquin Electric Company, Inc. Super Hilcodyne Nine December 1927 9                   Impedance & Iron   Fred A. Jewel   New York City
Hollister Lincoln Radio Corporation Hollister AC 8 Super February 1929 8  4 - 222,                3 - 201A,              & 1 - 171A 8 x 28 2 - Drum 2 N W Lincoln Tunable Tall Rectangular Variable 350       to 550 Air Air William H. Hollister   "   "   "
Holmes Holmes Electric Manufacturing Co. Holmes Air-Core RF Transformers  ?? June 1927 n / a     n / a                     Chicago
Holtzmark Wm. Holtzmark Super - Hetrodyne Model H.V.3 [1926] 9 9 - 201A (7 x 28) 2 7 N (TL) Victoreen Tuna Can 88 Air Air Charles J. Victoreen Wm. Holtzmark St. Louis
Hopkins   Portable Super-Het August 1925 8                       Russel H. Hopkins    
House of Coils, The Unique Coil Co. Type F - Super Heterodyne Oscillatior Coil December 1924 n / a                           New York City
Humphries NIF Eight Tube Super-Heterodyne Receiver October 1924 8                       LeRoy E. Humphries   Atlanta
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Impedance Coupled - CRCB NIF Impedance Coupled Super-Heterodyne (September 1927)                              
Imperial - Vistoreen NIF The Imperial Eight (1925 or 1926) 8 8 - 201A 7 x 26 2 2 N TL or W Victoreen Vertical Tuna Can 88 Air Air Charles J. Victoreen ???  
Imperial Imperial Radio Corp. Imperial September 1926                             Chicago
Infradyne DX - Remler Radio Constructors Corp. Model DX 1928 Infradyne July 1927 10 [5 *****] 5-201A,               4-199,                      1-112 or 171 Copper Embossed Cabinet                     11 x 26 2 - Drum 3 1 - V W Remler Module 3490 Air Air E. M. Sargent                   & L. C. Rayment   Oakland, CA
  "    "    "    "    "    " "    "    "    "    "    "    "    "    " Remler Units (1928 Infradyne) November 1927               "   "   " "   "   " "   " "   " "   "     "    "    "    "    "    "    "    "
  "    "    "    "    "    " "    "    "    "    "    "    "    "    " 1928 Infradyne November 1927                "   "   " "   "   " "   " "   " "   "     "    "    "    "    "    "    "    "
  "    "    "    "    "    " "    "    "    "    "    "    "    "    " New 1929 Infradyne Late 1928 10 [5 *****]             Remler Module "   "   " 3490 "   " "   "     "    "    "    "    "    "    "    "
IRCO Independent Radio Corp. IRCO Type BK IF Transformers March 1927 9 ??             IRCO     Air Air     Philadelphia
Jaynxon Jaynxon Radio Laboratory Jaynxon Super-Heterodyne July 1924 8                           New York City
Jefferson Jefferson (Long Wave) IF Transformers August 1925 n / a     n / a       Jefferson Rectangle 30         Chicago
Jefferson - Best n / a  Best Modified Superheterodyne Shielded Model (Fall 1925) 7 7 - 199 10 x 21 3 2 1 - V W Remler Cylindrical 45 Iron Air Gerald M. Best   "    "    "    "    "    "    "    "
Jefferson - Brush n / a Kodak Size Midget 45 K.C. Best Super Spring 1925 7 7 - 199 5 3/4 x 11 2 4 1 - V TL or W Jefferson Rectangle 30     Gerald M. Best W. P. Brush, Designer San Francisco
Jefferson - Radio Owners Service n / a Jefferson Superhet Eight October 1925 8 8 - 199 7 x 20 2 2 1 - V TL Jefferson Rectangle 30         "    "    "
Jellicoe n / a Five Tube Super Receiver April 17, 1926 5 ** (201A) 7 x 20 2       NIF NIF NIF NIF NIF Jasper Jellicoe    
Jones NIF Versatile Superheterodyne December 1926 7                       Leslie Raymond Jones, developer?    
Johnson NIF Eight Tube Super May 1924 8             (Homemade)         Leo Johnson    
Kardon Kardon Products Inc. Kompentrol - The Super Heterodyne 1924 8             Kardon         Peter Kardon   New York City
Kellogg Kellogg Switchboard and Supply Kellogg Superheterodyne Transformers 1924 n / a     n / a       Kellogg Rectangle 45 Iron Air     Chicago
Kleinfeld M. H. Kleinfeld & Co. 8-Tube Super-Heterodyne May 1924 8                         M. H. Kleinfeld New York City
Klentz Klentz Radio Company Klentz Super-Heterodyne Kit May 1924 n / a n / a n / a n / a n / a n / a n / a Klentz Tall Rectangle 95 Air Air     Chicago
  "    " "    "    "    "    "    "    " Klentz Super-Heterodyne Fall 1924 7 7 - 201A 7 x 30 2 3 N L Klentz Tall Rectangle 95 Air Air     "    "     "
  "    " "    "    "    "    "    "    " Klentz Super-Heterodyne Fall 1925               Klentz Tall Misshapen Rectangle 95 Air Air     "    "     "
Klentz - Citizens Radio Call Book "    "    "    "    "    "    " 100 K. C. Super-Heterodyne March 1927 8 8 - 201A 7 x 26 2 3 1 - V L Klentz Tall Misshapen Rectangle 95 Air Air     "    "     "
  "    "    "    "    "    "    "    "    "    "    " n / a 100 K. C. Super September 1927               (Klentz)   100 Air Air     New York City
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Lacault R. E. Lacault, Inc. R. E. 29  All-Wave April 1929 6 + 2 + 2 3 - 201A,              3 - 222,  2 - 210,          & 2 - 281 7 x 24 2 N N W Lacault Small                             Horizontal Coils 120 Air Air Robert E. Lacault   New York City
Lacault / de Willy n / a Super-Heterodyne with Homebuilt IFs or RCA 1716 IFs December 1923 10 10 - 201A (24 x 18) 2 7 N W R. C. A. [General Electric] Misc 60 Iron n / a R. E. Lacault & F. de Willy   New York City
Lake Radio Service Lake Radio Service HI-AMP Super Heterodyne Kit October 1924 n / a                           Chicago
Lakeside Supply Lakeside Supply Company Microdyne Model 550-EM March 1925 7 7 - 201A 7 x 18 2 2 N L Apex Short Cylindrical NIF Air Air (E. K. Oxner)   Chicago
Langbein & Kaufman Langbein & Kaufman Superheterodyne Oscillator Coil Fall 1924 n / a n / a n / a n / a n / a n / a n / a n / a n / a NIF n / a n / a     New Haven, Conn.
Langhorne Langhorne Radio Company Langhorne Super Heterodyne 1927 or 1928 8 8 - 201A (7 x 36) 3 5 N (L or W) Langhorne Thick Vertical                Tuna Can NF (Air) Air Thomas J. Langhorne   Portland, OR
La Peer La Peer Electrical Mfg. Co. La Peer "D" Coil Essential Kit November 1927 n / a     n / a       Le Peer Vertical Tuna Can NF Air Air     Chicago
  "    "    " "    "    "    "    "    "    "    "    " La Peer AR-9 Super November 1927 9               "   "   "     "   "   "    "    " " " "     "   "   "
Lavoy - Remler Lavoy Lavoy Novodyne (1925) 8 6 - 199 & 2- 201A 7 x 28 2 3 1 - V TL Remler Cylindrical 45 Iron Air Gerald M. Best Lavoy (California)
Leroy Radio Shop, The  Leroy Super Heterodyne  ^ 1924 8                           Sunnyvale, Ca.
Levy   60 K. C. Peanut Super Using Western Electric "N" Tubes February 1926 7                       Morris Levy    
Liberty Liberty Mail Order House Reflexed Super-Heterodyne Kit  [Hanscom] January 1925 6                       Allan T. Hanscom   New York City
Liberty Electric Liberty Electric Corporation Super-Heterodyne Kit No. R-40 July 1924               Liberty Electric Tall Cylindrical 57 Air Air     Stamford, Conn.
Liberty Transformer Liberty Transformer Co., Inc. Liberty Special Air Core Radio Frequency Transformer November 1924 n / a             Liberty Transformer     Air Air     Chicago
Lincoln Lincoln Radio Corporation Long 45 Tuner / Kit January 1925                             Chicago
  "    "   "    "    "    "    "    " Lincoln Oscillascope Oscillator Coupler November 1924 n/a                           "   "   "
  "    "   "    "    "    "    "    " Lincoln Superheterodyne December 1926 8             Silver Marshall Tuna Can   Air Air     "   "   "
  "    "   "    "    "    "    "    " Lincoln 8-80 One-Spot Super November 1928 8  4 - 222,                3 - 201A,              & 1 - 171A (7 x 22) 2 - Drum 2 N W Lincoln Tunable Tall Rectangular Variable 350       to 550 Air Air William H. Hollister   "   "   "
  "    "   "    "    "    "    "    " Lincoln 8-40 Super September 1929 8             Lincoln   475 Impedance       "   "   "
Lincoln Quality Lincoln Quality Products Company Lincoln Quality Approved Products Superheterodyne 1926 8     2 3 N   Lincoln Quality Small Bakelite            Tuna Can   Air Air     Cleveland
Lincoln Quality Rex Laboratories, Inc. Lincoln Quality "Standard of Comparison" Receiver September 1927 n / a n / a n / a n / a n / a n / a n / a n / a n / a n / a n / a n / a n / a n / a Cleveland
  "    "    "    "    "      "    "    "    "    "    "    " Lincoln Quality "Standard of Comparison" Super Nine November 1927 9 7 - 201A,                1 - 112, & 1 - 171 7 X 26 2 2 N TL Lincoln Quality Small Bakelite            Tuna Can   Air Air     "    "    "
Lincoln Lincoln Radio  REX?? Best Lincoln Nine September 1927 9   7 x 24         Lincoln         Gerald M. Best   Cleveland
Locke Locke Radio Shop Sockets & Low-Loss Coils November 1924 7                           Victor, N. Y. 
Long - Remler Long Radio Works Model S - 8 (Likely 1925) 8 8 - 199 7 x 24 2 3 1 - V TL Remler Cylindrical 45 Iron Air Gerald M. Best Les or George Long Cornelius, Oregon
Lynch   Super-Het April 1924 (8)                       Arthur H. Lynch    
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
M. A. R. S. Manual Arts Radio & Electric Shop Six-Tube Super-Heterodyne Mar-24 6                           Los Angeles
M & H Moskowitz & Herbach M. & H. 8-Tube Super-Heterodyne June 1924 8 UV201A             or DV-2                or UV199 7 x (26) 2 3 N KL Moskowitz & Herbach Short Cylindrical 50 (Iron) Air     Philadelphia
Madison Madison Radio Corporation Ultradyne Model L-2 June 1926               Madison Tuna Can       R. E. Lacault   "    "    "    "    "
  "    "    " "    "    "    "    "    "    "    "    "    " Madison Multi-Chokes January 1927 n / a             Madison             New York City
  "    "    " "    "    "    "    "    "    "    "    "    " Madison Ultraformers For Strobodyn September 1927 n / a             Madison         R. E. Lacault   "    "    "    "    "
Madison - Lacault Ultradyne LR-4 Radio Electric Laboratories /                                              Madison Radio Corporation Shielded Ultradyne LR-4 Siper-Radio November 1926 9 9 - UX201A 8 x 24 2 1 N L Madison Multi-Choke Tuna Can n / a n / a n / a R. E. Lacault,               A.M., IRE   "    "    "    "    "
(Madison Ultradyne Six) ^ Allen-Rogers-Madison ^ (Ultradyne Six) ^ 1928 6             (Madison)             New York City
Madison Moore Madison Moore Radio Corp. Madison Moore IFs August 1925 n / a n / a n / a n / a n / a n / a n / a Madison Moore Big Tuna Can 35 Air Air Harry Madison   Denver
  "    "    "    "    " "    "    "    "    "    "    "    "    "    " Superheterodyne (201As) February 19, 1926 8 8 - 201A 7 x 28  2 3 1 -V                   & 1 - MA L Madison Moore Big Tuna Can 35 Air Air Harry Madison   "    "
  "    "    "    "    " "    "    "    "    "    "    "    "    "    " Superheterodyne (201As) September 1926 8 8 - 201A 7 x 28  2 3 1 -V                   & 1 - MA L Madison Moore Big Tuna Can 92.5 Air Air Harry Madison   "    "
  "    "    "    "    " "    "    "    "    "    "    "    "    "    " Superheterodyne (199s) September 1926 8 8 - 199 7 x 24 2 2 1 - V L Madison Moore Big Tuna Can 92.5 Air Air Harry Madison   "    "
  "    "    "    "    " "    "    "    "    "    "    "    "    "    " New One-Spot January 1927 9 2 - 199,                   6 - 226, 1 - 227           Madison Moore Big Tuna Can 490 Air Air Harry Madison   "    "
  "    "    "    "    " "    "    "    "    "    "    "    "    "    " "One Spot" & "One Spot Batt'ry-less" March 1927               Madison Moore Big Tuna Can 490 Air Air Harry Madison   "    "
  "    "    "    "    " "    "    "    "    "    "    "    "    "    " AC International One Spot September 1927 9 + 3 2 - 199, 6 - 226,   1 - 227, 1 - 280,   1 - 171, & 1 - 874 7 X 28 2 - Drum 2 N TL Madison Moore Arched Aluminum 490 Air Air Harry Madison   "    "
Madison Moore - Calcatera   Shielded Hyboy "One Spot" Superheterodyne March 1927 8             Madison Moore Tuna Can   Air Air Joseph Calcaterra   New York City
Magnaformer Radiart Laboratories Co. (Magnaformer 9-8  [D-C]  ^) 1926 ^ 8 or 9             Magnaformer Tuna Can 69.73 Air Air     Chicago
  "    "    "    " "    "    "    "    "    "    "    " Magnaformer 9-8  All Electric  [A-C] (Spring 1927} 8 or 9             Magnaformer Tuna Can 69.73 Air Air     "    "    "
  "    "    "    " "    "    "    "    "    "    "    " Magnaformer 9-8 Model A-8 [D-C]                                                                               "Commander-In-Chief Of The Air" September 1927 8 or 9 201A,                   112, & 171 7 x 26 2 Drum 2 N   Magnaformer Tuna Can 69.73 Air Air (J. M. Douglas)   "    "    "
  "    "    "    " "    "    "    "    "    "    "    " Magnaformer 9-8 Model A-8 [A-C]                                                                               "Commander-In-Chief Of The Air" November 1927 8 or 9             Magnaformer Tuna Can 69.73 Air Air     "    "    "
  "    "    "    " "    "    "    "    "    "    "    " Magnaformer AC-29 January 1929 10 AC222, 227, 281, & 250 7 x 24         Magnaformer Tuna Can           "    "    "
Magnaformer - Sutton n / a Flexible Nine-Tube Superheterodyne February 1929 9             Magnaformer Tuna Can 69.73 Air Air Coleman Sutton    
Marathon - Ultradyne Marathon Radio Marathon Ultradyne L-1 April 1924 n / a n / a n / a n / a n / a n / a n / a Marathon Tuna Can 30 Air Air N. E. Borch   San Francisco
Master Master Radio Supply Company Master Intermediate Frequency Module  January 31, 1925 n / a n / a n / a n / a n / a n / a   Master Radio Supply Co Rectangular      Module 60 Air Air     Chicago
  "    " Master Radio Supply Company Master Super-Heterodyne  January 31, 1925 8 8 - 201A (7 x 30) 2 4 N   Master Radio Supply Co Rectangular      Module 60 Air Air     Chicago
Maxum Maxum Electric Company Maxum Long Wave Transformer Fall 1924               Maxum             Philadelphia
Mayo   Superheterodyne July 1923 10                       R. R. Mayo    
McCullah   Efficient Super-Heterodyne April 1924 10 10 - 201A (7 x 30) 2 (4) N W n / a Duo-Lateral Coils   Air Air Arthur B. McCullah    
  "    "    "   Efficient Super-Heterodyne Improved June 1924 9 [or 10] 9 [or 10] - 201A (7 x 30) 2 (4) N W n / a Duo-Lateral Coils &       Variable Caps   Air Air Arthur B. McCullah    
  "    "    "   Sure Shot Super-Het February 1925 9 9 - 199 & 201A (7 X 30) 2       n / a Duo-Lateral Coils &       Variable Caps   Air Air Arthur B. McCullah    
McDonald W. E. Fuetterer S. & S. Co. McDonald Superheterodyne (1924) 8 8 - 201A 8 x 36 2 7 N NIF McDonald Tall Cylindrical 30 NIF NIF George W. Van Sickle   St. Louis
McGown Radio Laboratory   Best's 115 K. C. Super Parts February 1928                             "    "    "    "    "
Melo-Heald Robertson-Davis Co., Inc. Melo-Heald Eleven November 1926 11 10 - 201A              & 1 - 112 7 x 28 2 4 1 -V                   & 1 - MA TL Melo-Heald Cylindrical 125 Air Air Merwyn Heald   Chicago
  "    "    "    " "    "    "    "    "    "    "    " Melo Heald Hot Spot Fourteen September 1927 14 8 - 199,                             5 - 201A,              & 1 - 171 7 x 30 2 4 1 -V                   & 1 - MA TL Melo-Heald Cylindrical 125 Air Air Merwyn Heald   "    "    "
COMMON NAME MANUFACTURER / DISTRIBUTOR MODEL FIRST OFFERED NUMBER OF TUBES TUBE TYPES FRONT PANEL SIZE MAJOR TUNING DIALS ADD'L PANEL KNOBS METER WIRE OR LOOP IF / FILTER MFG IF / FILTER SHAPES IF PEAK (KHz) IF CORE FILTER CORE CIRCUIT DEVELOPER BUILDER WHERE DEVELOPED
Mercury  H. M. Kipp Co.Limited Standard Ten (1926) 10 10 - Northern Electric R215A "Peanut" (6.75 x 18) 2 2 N L Mercury (Wooden Module) NIF (Air) (Air) Lowry   Toronto, Canada
  "    "    " H. M. Kipp Co.Limited Scout (1926) 10 10 - Northern Electric R215A "Peanut" (6.75 x 18) 2 2 N L Mercury (Wooden Module) NIF (Air) (Air) Lowry   "    "    "    "    "    "
  "    "    " "    "    "    "    "    "    " Mercury Super Ten Kit 1927