• Country
• United States of America (USA)

• Manufacturer / Brand
• Detrola; Detroit (MI)

• Year
• 1938 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 37227

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

• Number of Tubes
• 7

• Valves / Tubes
• 6A7 6D6 6Q7G 76 43 43 25Z5

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Short Wave(s) and Police.

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

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 16 cm = 6.3 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: 223 - Detrola; Detroit MI

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 420 x 228 x 200 mm / 16.5 x 9 x 7.9 inch

• Notes

• The Detrola 223 has the following features:

  • 3 bands:
    MW: 540 - 1600 kHz
    SW1: 1.6 - 5.5 MHz
    SW2: 5.5 - 16.5 MHz
  • 6 button mechanical automatic tuning system

  Different cabinet but same chassis as Detrola Goldentone 223.

  The Detrola 233 was the radio with phonograph version.

• Net weight (2.2 lb = 1 kg)
• 6.7 kg / 14 lb 12.1 oz (14.758 lb)

• External source of data
• Ernst Erb

• Source of data
• Machine Age to Jet Age III

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

• Other Models

• Here you find 335 models, 197 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)