• Year
  • 1936 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 41389
    • Brand: Coronado

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • Storage and/or dry batteries / 135 & 90 & 4.5 & 2 Volt
  • Loudspeaker
  • Magnetic loudspeaker (reed) generic.
  • from Radiomuseum.org
  • Model: 77A - Gamble-Skogmo, Inc.;
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before

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