• Country
• United States of America (USA)

• Manufacturer / Brand
• Detrola; Detroit (MI)

• Year
• 1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 37257

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

• Number of Tubes
• 4

• Valves / Tubes
• 12K7GT 12F5GT 35L6GT 35Z4GT

• Main principle
• TRF without regeneration; 1 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 105-125 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 3.25 inch = 8.3 cm

• Material
• Bakelite or Plastics (type unknown)

• from Radiomuseum.org
• Model: 280 Junior Pee Wee - Detrola; Detroit MI

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 6.2 x 4.7 x 4.75 inch / 157 x 119 x 121 mm

• Notes
• Color versions: Brown bakelite, ivory/red/green/blue plaskon. See also model 216.

• External source of data
• Ernst Erb

• Source of data
• Table Top Radios Vol. 1 Stein 98

• Circuit diagram reference
• Rider's Perpetual, Volume 10 = 1939 and before

• Mentioned in
• Machine Age to Jet Age II (page 35.)

• Other Models

• Here you find 334 models, 195 with images and 291 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Detrola; Detroit (MI)