• Year
  • 1938/1939
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 49269

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 1.25V Bias Cell and 117 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 10 inch = 25.4 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 89K1 Ch= 89R1 - Motorola Inc. ex Galvin Mfg.Co
  • Shape
  • Console with Push Buttons.
  • Notes
  • The Motorola 89K1 is an AC operated, 8 tube BC band receiver with built-in clock.  Has push button tuning with electric tuner and push-pull audio output stage. Also has 1.25V bias cell.

    The following models make up the 89K and 109K family of radio's:

    Model Bands RF tube Separate Osc tube 2nd AF tube Remote Control Number of tubes Speaker
    89K1 BC Yes No No No 8 10"
    89K2 BC Yes No No Yes 8 10"
    89K3 BC, SW No Yes No No 8 10"
    109K1 BC, Police, SW Yes Yes Yes No 10 12"
    109K2 BC, Police, SW Yes Yes Yes No 10 12"
  • External source of data
  • Ernst Erb
  • Literature/Schematics (3)
  • - - Manufacturers Literature (Motorola Home and Car Radio Combined Service Manuals 1930 to 1942 pages 441 to 448)

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