• Country
• United States of America (USA)

• Manufacturer / Brand
• Bogen (-Presto), David Co., Inc.; New York, NY / Paramus, NJ

• Year
• 1946 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 113298

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

• Number of Tubes
• 2

• Valves / Tubes
• 50L6 12SL7

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Direct Current supply (DC)

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: 2A Communo-Phone - Bogen -Presto, David Co., Inc.

• Shape
• Tablemodel, with any shape - general.

• Notes

• Intercom system unit.

  Used in 2AR (listen or talk to remote) or 2RS (push-to-talk; both ends) intercom systems

• Source of data
• -- Collector info (Sammler)

• Literature/Schematics (1)
• -- Schematic (Riders PA Manual)

• Author
• Model page created by Wolfgang Bauer. See "Data change" for further contributors.

• Other Models

• Here you find 242 models, 219 with images and 158 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Bogen (-Presto), David Co., Inc.; New York, NY / Paramus, NJ