• Year
  • 1927
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 45425
    • alternative name: Colin B. Kennedy Corp.
    • Brand: Globe Trotter

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • TRF without regeneration; 2 AF stage(s); Screengrid 1926-1935
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Direct Current supply (DC) / 110-120 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: 22 - Kennedy Co., Colin B.; San
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Push-pull audio amplifier. One dial (primary tuning control knob) Grinder erroneously calles it a battery model and dates it 1924. But some tube types did not exist then. The UX222 came only in Oct.1927!
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)

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