705 Ch= 2052
Zenith Radio Corp.;: 705 Ch= 2052 [Radio] ID = 2111899 1400x1050
Select picture or schematic to display from thumbnails on the right and click for download.
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alternative name
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Chicago Radio Lab | ||||
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| Year: 1933/1934 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Valves / Tubes | 6: 57 58 56 2A6 59 80 |
| Main principle | Superheterodyne (common); ZF/IF 485 kHz; 2 AF stage(s) |
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| Tuned circuits | 6 AM circuit(s) |
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | Alternating Current supply (AC) / 117 Volt |
| Loudspeaker | Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5.5 inch = 14 cm |
| Power out | |
| from Radiomuseum.org | Model: 705 Ch= 2052 - Zenith Radio Corp.; Chicago, |
| Material | Wooden case |
| Shape | Tablemodel without push buttons, Mantel/Midget/Compact up to 14 |
| Dimensions (WHD) | 15.5 x 8.5 x 7.5 inch / 394 x 216 x 191 mm |
| Notes | The model 705 from Zenith Radio Corp. with chassis nr. 2052 comes with an elaborated inlaid wood case, called by Zenith "the challenger series". The 705 is small and therefore also called mantle type radio. |
| Net weight (2.2 lb = 1 kg) | 3.8 kg / 8 lb 5.9 oz (8.37 lb) |
| External source of data | E. Erb 3-907007-36-0 |
| Circuit diagram reference | Rider's Perpetual, Volume 4 = ca. 1934 and before |
| Mentioned in | Beitman Radio Diagrams, Vol. 01, 1926-1938 |
| Literature/Schematics (1) | Machine Age to Jet Age II (page 325.) |
All listed radios etc. from Zenith Radio Corp.; Chicago, IL
Here you find 4275 models, 3894 with images and 3389 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
