• Country
• United States of America (USA)

• Manufacturer / Brand
• Detrola; Detroit (MI)

• Year
• 1946

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 37371

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

• Number of Tubes
• 5

• Valves / Tubes
• 12SA7GT 12SK7GT 12SQ7GT 50A5 35Y4

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

• Tuned circuits
• 6 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 5 inch = 12.7 cm

• Power out
• 1.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 571X [octals] - Detrola; Detroit MI

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

• Notes
• Permeability tuned RF- and oscillator circuit. Frequency range 540-1700 kHz. Output .75 watt undistorted, 1.5 watts maximum.
  There is also a version employing three loctal tubes.

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios 4. Edition

• Circuit diagram reference
• Rider's Perpetual, Volume 15 = 1947 and before

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 9, Folder 469-11)

• 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)