• Country
• United States of America (USA)

• Manufacturer / Brand
• Setchell Carlson, Inc.; St.Paul (MN)

• Year
• 1937 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 57811

• • Brand: Doraphone

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

• Number of Tubes
• 7

• Valves / Tubes
• 6D8 6S7 6T7 6L5 6N5 6Z7 19

• Main principle
• Superheterodyne (common); ZF/IF 465 kHz

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 110; 6 Volt

• from Radiomuseum.org
• Model: 622 - Setchell Carlson, Inc.; St.

• Notes
• 110 V AC or 6 V DC supply; push-pull af output stage; tuning eye; farm radio; the type "19" duo-triode is used as a rectifier.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 9 = 1938 and before

• Other Models

• Here you find 127 models, 70 with images and 99 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Setchell Carlson, Inc.; St.Paul (MN)