• Country
• United States of America (USA)

• Manufacturer / Brand
• Detrola; Detroit (MI)

• Year
• 1938 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 37219

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

• Number of Tubes
• 4

• Valves / Tubes
• 6D6 6C6 25L6G 25Z5

• Number of Transistors

• Semiconductors
• BK55BG

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

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Details
• Record Player (perh.Changer)

• Power type and voltage
• Alternating Current supply (AC) / 105-125 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• from Radiomuseum.org
• Model: 208AP - Detrola; Detroit MI

• Notes
• Ballast tube "BK55BG".

• External source of data
• Ernst Erb

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

• Other Models

• Here you find 330 models, 192 with images and 287 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Detrola; Detroit (MI)