Intercommunication System 20R + 200
Challenger Amplifier Co. (Bogen); New York, NY / Paramus, NJ
- Country
- United States of America (USA)
- Manufacturer / Brand
- Challenger Amplifier Co. (Bogen); New York, NY / Paramus, NJ
- Year
- 1948/1949
- Category
- Miscellaneous (Other, Various) - see notes
- Radiomuseum.org ID
- 132414
SAMS picture as reference.
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 2
- Main principle
- Audio-Amplification
- Wave bands
- - without
- Power type and voltage
- AC/DC-set / 110-120 Volt
- Loudspeaker
- 2 Loudspeakers / Ø 3.375 inch = 8.6 cm
- Material
- Bakelite or Plastics (type unknown)
- from Radiomuseum.org
- Model: Intercommunication System 20R + 200 - Challenger Amplifier Co. Bogen
- Shape
- Tablemodel without push buttons, Mantel/Midget/Compact up to 14
- Notes
- The two models 20R (master) and 200 (slave) are together an AC-DC operated intercommunication system made by Challenger Amplifier Co. The 12SL7GT functions as AF amplifier plus rectifier and the 50L6GT as power output tube. The slave has only a "break in switch".
- Literature/Schematics (1)
- Photofact Folder, Howard W. SAMS (Date 9-49, 4917-5, set 69, folder 5)
- Author
- Model page created by Ernst Erb. See "Data change" for further contributors.
- Other Models
-
Here you find 47 models, 43 with images and 35 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Challenger Amplifier Co. (Bogen); New York, NY / Paramus, NJ