21P720U Ch= 300-21
Hoffman Radio Corp.; Los Angeles, CA
- Country
- United States of America (USA)
- Manufacturer / Brand
- Hoffman Radio Corp.; Los Angeles, CA
- Year
- 1954 ?
- Category
- Television Receiver (TV) or Monitor
- Radiomuseum.org ID
- 371810
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 21
- Valves / Tubes
- 6AF4 or 6T4 6BZ7 or 6BQ7 6U8 6CB6 6CB6 6CB6 6AL5 12BY7 12AU7 6AU6 6AL5 6AV6 6W6GT 12AU7 6SN7GT 6S4 6SN7GT 6BQ6GT 6W4GT 1B3GT 21YP4
- Main principle
- Superhet with RF-stage
- Wave bands
- Wave Bands given in the notes.
- Power type and voltage
- Alternating Current supply (AC) / 60Hz, 117V=110-120 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm
- Material
- Wooden case
- from Radiomuseum.org
- Model: 21P720U Ch= 300-21 - Hoffman Radio Corp.; Los
- Shape
- Tablemodel, with any shape - general.
- Notes
-
Hoffman model 21P720U is a 21” b/w TV with US standard VHF tuner channels 2 thru 13, and 14 thru 83 UHF. Equipped with chassis 300-21, UHF-VHF tuner 9795 and picture tube 21YP4.
- Literature/Schematics (1)
- Photofact Folder, Howard W. SAMS (Set 236, folder 6, dated 4-54)
- Author
- Model page created by Dirk Taekels. See "Data change" for further contributors.
- Other Models
-
Here you find 1004 models, 222 with images and 966 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Hoffman Radio Corp.; Los Angeles, CA