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alternative name
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Chicago Radio Lab | ||||
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Year: 1929 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
Valves / Tubes | 8: 24 or 24A 27 27 27 27 10 81 81 |
Main principle | TRF without regeneration; Screengrid 1926-1935 |
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Tuned circuits | 4 AM circuit(s) |
Wave bands | Broadcast only (MW). |
Details | |
Power type and voltage | Alternating Current supply (AC) / 115 Volt |
Loudspeaker | Electro Magnetic Dynamic LS (moving-coil with field excitation coil) |
Power out | |
from Radiomuseum.org | Model: 42 - Zenith Radio Corp.; Chicago, |
Material | Wooden case |
Shape | Console, Lowboy (legs < 50 %). |
Notes | One dial (primary tuning control knob) According to the schema, UX224 is used in the 1st RF stage, but the tube layout drawing shows a 24A. The combined schema for models 41 and 42 don't show the rectifiers (one 81 for model 41, two for model 42). |
Price in first year of sale | 175.00 $ |
External source of data | Ernst Erb |
Source of data | Radio Collector`s Guide 1921-1932 |
Circuit diagram reference | Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931) |
Mentioned in | The Radio Collector's Directory and Price Guide 1921 - 1965 |
All listed radios etc. from Zenith Radio Corp.; Chicago, IL
Here you find 4278 models, 3897 with images and 3389 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.