Mobile Amplifier Phono 3728-M

Bell Sound Systems; Columbus (OH)

  • Year
  • 1947
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 128945

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

 Technical Specifications

  • Number of Tubes
  • 9
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Record Player (not changer)
  • Power type and voltage
  • Line / Storage batteries (perhaps also batteries) / Either Battery: 1 x 6 V or AC: 60 cycles, 117 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 30 W (45 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Mobile Amplifier Phono 3728-M - Bell Sound Systems; Columbus
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 16.5 x 10 x 16.5 inch / 419 x 254 x 419 mm
  • Notes
  • The Bell Sound model 3728-M is an AC-line or battery operated mobile 3 channel audio amplifier with record player. For (storage) battery operation the model 3728-M has a built in vibrator.
  • Net weight (2.2 lb = 1 kg)
  • 60 lb (60 lb 0 oz) / 27.240 kg
  • Literature/Schematics (2)
  • Radio Master's Catalog, 15th ed., 1950-51, pg. B-6.
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum