• Year
  • 1931/1932
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 44170

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • ZF/IF 1525 kHz
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Powered by external power supply or a main unit.
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 2 W (undistorted)
  • from Radiomuseum.org
  • Model: HY7B - Hatry & Young
  • Notes
  • The HY-7B used an external power supply. It required two plug-in coils (5-prong) for each band -- one oscillator coil and one antenna coil. Coverage was from 2 - 15.2 MHz in five bands.  It was available either as a kit or factory wired set.

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
  • Literature/Schematics (1)
  • 1934 Official Short Wave Manual

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