21M172 Ch= 303-21

• Country
• United States of America (USA)

• Manufacturer / Brand
• Hoffman Radio Corp.; Los Angeles, CA

• Year
• 1956 ?

• Category
• Television Receiver (TV) or Monitor

• Radiomuseum.org ID
• 293244

• Picture
• Schematics

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

• Number of Tubes
• 20

• Valves / Tubes
• 6BQ7A 6J6 6CB6 6CB6 6AS8 6CB6 6AU6 6AL5 6AV6 6K6GT 12AU7A 6C4 6AQ5 6AL5 6SN7GT 6BQ6GTB or 6CU6 6AX4GT 1X2B 5U4G 21AUP4A

• Main principle
• Superhet with RF-stage

• Wave bands
• Wave Bands given in the notes.

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

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: 21M172 Ch= 303-21 - Hoffman Radio Corp.; Los

• Shape
• Tablemodel, with any shape - general.

• Notes

• The Hoffman model 21M172 is a 21" b/w TV with US standard VHF Tuner channels 2 thru 13. Equipped with chassis 303-21, VHF tuner 9839 or 9786  and picture tube 21AUP4A. Has Qty(2) Selenium Rectifiers .

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 312 Folder 6 Dated 4-56)

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

• Other Models

• Here you find 980 models, 219 with images and 946 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hoffman Radio Corp.; Los Angeles, CA