• Country
• United States of America (USA)

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

• Year
• 1940 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 57813

• • Brand: Doraphone

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

• Number of Tubes
• 5

• Valves / Tubes
• 1N5 1A7 3A8 1T5 35Z5

• Main principle
• Superhet with RF-stage; ZF/IF 182 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / AC, DC: 110; Auto DC: 6-8; D: 5 x 1.5 or 10 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: 4-Way Portable 66 - Setchell Carlson, Inc.; St.

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 13 x 6 x 5.5 inch / 330 x 152 x 140 mm

• Notes

• Built-in loop antenna; vibrator for +B when powered by battery.

  "4-Way" Power is:

  1. 110 VAC (home or cottage), 
  2. 110 VDC (office or hotel),
  3. 6-8 VDC (auto or boat),
  4. 5 D cells in series 1 x 5 [7.5VDC], or 10 D cells in 2 x (1 x 5) configuration [7.5VDC with about twice the endurance] (portable). 

• Net weight (2.2 lb = 1 kg)
• 9.5 lb (9 lb 8 oz) / 4.313 kg

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 14 = 1944 = before 1943

• Mentioned in
• Radio Retailing (Radio & Television R.) (June 1940, page 71.)

• Literature/Schematics (1)
• Radio Today (and Television) (May 1940, page 22.)

• Literature/Schematics (2)
• Radio Craft (Aug. 1940, page 119.)

• 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)