821
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Hallicrafters, The;: 821 [TV Radio] ID = 1317019 720x539
Select picture or schematic to display from thumbnails on the right and click for download.
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| Year: 1952 ? | Category: Television- and Radio Receiver, perh. also + Rec. etc. (TV Radio) | ||||
| Valves / Tubes | 24: 6CB6 6J6 6CB6 6CB6 6CB6 6AL5 6CB6 6AU6 6AL5 6AV6 6AQ5 12AU7 6SN7GT 6AU5GT 6W4GT 1B3GT 12AU7 6S4 6AX5GT 5U4G 6BA6 6BE6 6BA6 unknown_Tube |
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| Main principle | Superheterodyne (common) |
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| Wave bands | Wave Bands given in the notes. |
| Details | |
| Power type and voltage | Alternating Current supply (AC) / 117 Volt |
| Loudspeaker | Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm |
| Power out | 4.5 W (unknown quality) |
| from Radiomuseum.org | Model: 821 - Hallicrafters, The; Chicago, |
| Material | Wooden case |
| Shape | Console, Lowboy (legs < 50 %). |
| Notes | Console with doors 16 inch TV, with early square type CRT. Has also built-in an AM (BC band only superhet with RF amplifier) radio. VHF band only. IF is still in 25 MHz band, and it still uses a simple AGC circuit just like radios (not gated). Electromagnetic focus, with a big focus coil on the neck of the CRT. Power requirement: 235 W. When used as a radio receiver it keeps on all the TV tubes for quick start. Schematic very close to 818, but with more modern tubes (two 12AU7 instead of two 6SN7, 6AV6 instead of 6SQ7) and square CRT instead round one. |
Model page created by Enrico Bonisolo. See "Data change" for further contributors.
All listed radios etc. from Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX
Here you find 823 models, 448 with images and 398 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
