Colefax Ch= RA-357

• Country
• United States of America (USA)

• Manufacturer / Brand
• DuMont Labs, Allen B., Inc.

• Year
• 1956 ?

• Category
• Television Receiver (TV) or Monitor

• Radiomuseum.org ID
• 277840

• • alternative name: Dumont Television & Radio

• Picture
• Schematics

Previous Next

Previous Next

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

• Number of Tubes
• 20

• Valves / Tubes
• 6BK7A 6AF4A 6X8 6CB6 6CB6 6CB6 6AL5 12BY7A 6AU6 6T8 6AQ5 6CS6 12BH7A 12AU7 12AU7 6BQ6GA 6AX4GT 1B3GT 5U4GB 21AUP4A or 21AUP4B

• Main principle
• Superhet with RF-stage

• Wave bands
• VHF incl. FM and/or UHF (see notes for details)

• Power type and voltage
• Alternating Current supply (AC) / 60 Hz, 117V = 110 -120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Colefax Ch= RA-357 - DuMont Labs, Allen B., Inc.

• Shape
• Tablemodel, with any shape - general.

• Notes

• The DUMONT model COLEFAX is a 21" b/w TV with US standard VHF Tuner channels 2 thru 13, 14 thru 83 UHF. Equipped with VHF-tuner 89013871, UHF-tuner 89013771, chassis RA-357 and picture tube 21AUP4A or 21AUP4B.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 334 Folder 5 dated 10-56)

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 310 Folder 15-S dated 3-56)

• Author
• Model page created by Dirk Taekels. See "Data change" for further contributors.

• Other Models

• Here you find 302 models, 158 with images and 245 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from DuMont Labs, Allen B., Inc.