• Country
• United States of America (USA)

• Manufacturer / Brand
• ABC Laboratories, (where?)

• Year
• 1936

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 63742

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

• Number of Tubes
• 1

• Valves / Tubes
• 6A7

• Main principle
• RF Converter/Adapter (not voltage converter)

• Tuned circuits
• 2 AM circuit(s)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: 100 Police Converter - ABC Laboratories, where?

• Notes
• Frequency conversion range 1500 - 2600 kc.

• External source of data
• Ernst Erb

• Literature/Schematics (1)
• Rider's Perpetual, Volume 7 = 1936 and before (7-1 misc.)

• Other Models

• Here you find 1 models, 0 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from ABC Laboratories, (where?)