• Year
  • 1937
  • Category
  • Commercial Transmitter & Receiver (TRX not Amateur)
  • Radiomuseum.org ID
  • 34475

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

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown)
  • Tuned circuits
  • 1 AM circuit(s)
  • Power type and voltage
  • AC/DC-set / 105-125 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • from Radiomuseum.org
  • Model: 2W Communo-Phone - Bogen -Presto, David Co., Inc.
  • Notes
  • The model 2W Bogen Wireless Communo-Phone is an intercommunicating telephone system using the usual power lines both for power and to carry the voice currents. Two or more stations may be operated, but since this model is not selective, all stations will hear all conversation.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before

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