• Country
• United States of America (USA)

• Manufacturer / Brand
• General Motors Radio Corp.

• Year
• 1941

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 121869

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1T4 1S5 1S4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 1,5 & 67.5 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) generic. / Ø 3.5 inch = 8.9 cm

• Material
• Various materials

• from Radiomuseum.org
• Model: Pocket Portable 985775 - General Motors Radio Corp.

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 4.25 x 7.5 x 2.75 inch / 108 x 191 x 70 mm

• Notes
• Chrome plated front, black plastic case and lid. Loop antennae in lid. Rider ist listing under Chevrolet. Schiffer obviously is in error when calling it 975775.

• Net weight (2.2 lb = 1 kg)
• 0.6 kg / 1 lb 5.1 oz (1.322 lb)

• Source of data
• - - Data from my own collection

• Mentioned in
• The Portable Radio in American Life (p.125)

• Literature/Schematics (1)
• Rider's Perpetual, Volume 12 = ca. 1941 and before (see Chevrolet, p.4)

• Author
• Model page created by Richard Fairbanks. See "Data change" for further contributors.

• Other Models

• Here you find 59 models, 29 with images and 49 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Motors Radio Corp.