• Country
• United States of America (USA)

• Manufacturer / Brand
• Goodrich, B.F.; Akron,Ohio

• Year
• 1940 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 43253

• • Brand: Mantola

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 11

• Valves / Tubes
• 6A8G 6K7G 6K7G 6J5G 6J5G 6J5G 6J5G 6J5G 6F6G 6F6G 5Z3

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 9 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 12 inch = 30.5 cm

• from Radiomuseum.org
• Model: R-437 - Goodrich, B.F.; Akron,Ohio

• Notes
• Built-in loop antenna; push button tuning; push-pull af output stage.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 12 = ca. 1941 and before

• Other Models

• Here you find 112 models, 60 with images and 102 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Goodrich, B.F.; Akron,Ohio