TransOceanic R-520A/URR

Zenith Radio Corp.; Chicago, IL

  • Year
  • 1956/1956
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 339073
    • alternative name: Chicago Radio Lab

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superhet with RF-stage; ZF/IF 455 kHz
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Line / Batteries (any type) / 117/220 or 9 & 90 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: TransOceanic R-520A/URR - Zenith Radio Corp.; Chicago,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 17 x 11 x 8 inch / 432 x 279 x 203 mm
  • Notes
  • Radio Receiver R-520A/URR. Military version of a modified Zenith Transoceanic A600L series. Covered with Army Green oilcloth. No dial light. No retractable power cord.  Production was only 2,973. The Zenith 220V Adapter was installed. This model was a special build radio for the Army Signal Corp in 1956 and not sold to the public.  According to Bryant and Cones, this is the rarest of all Trans-Oceanics.

  • Net weight (2.2 lb = 1 kg)
  • 18 lb (18 lb 0 oz) / 8.172 kg
  • Literature/Schematics (1)
  • -- Original-techn. papers. (TM 11-877 C1)
  • Author
  • Model page created by Freeman King. See "Data change" for further contributors.

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The model TransOceanic R-520A/URR is part of the collections of the following members.

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