Coronado Z-530 ch= Zenith 530 Interocean

Gamble-Skogmo, Inc.; Minneapolis, MN

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  • Year
  • 1933
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 41477
    • Brand: Coronado

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

 Technical Specifications

  • Number of Tubes
  • 12
  • Main principle
  • Superhet with RF-stage; ZF/IF 175 kHz
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 115/230 Volt
  • Loudspeaker
  • 2 Loudspeakers / Ø 12 inch = 30.5 cm
  • from Radiomuseum.org
  • Model: Coronado Z-530 ch= Zenith 530 [Interocean] - Gamble-Skogmo, Inc.;
  • Notes

  • The 1933 Coronado Z-530 was actually a 1933 Zenith 530.  In 1933, Zenith was in so much financial trouble that they briefly sold radios to other brands under the "Interocean" label.  One of these radios exists in Iowa in the USA and pictures will be forthcoming.  It is identical to the Zenith 530 because it is a Zenith 530, hence the model number "Z-530"

    The two speakers are both 1400 ohm field coil speakers and the primary speaker has a two part field coil.

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before

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