• Year
  • 1938 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 38701
    • alternative name: Emerson Television

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

 Technical Specifications

  • Number of Tubes
  • 14
  • Main principle
  • Superhet with RF-stage; ZF/IF 456 kHz; 3 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • 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: AB178 Ch= AB - Emerson Radio & Phonograph
  • Notes
  • 6J5 tubes instead of all 6C5 also. Models with serial number below 1320357 BC(550-1750kHz), TROP(1750-6250kHz), SW(5.6-18.0MHz) bands. Other models BC(540-1800kHz), TROP(1800-6250kHz), SW(5.8-22.9MHz) bands. Push-pull audio amplifier. Two tube "symphonizer".
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 9 = 1938 and before

 Collections | Museums | Literature

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The model AB178 is part of the collections of the following members.

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