Grunow 502A Ch= 5-B
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General Household: Grunow 502A Ch= 5-B [Radio] ID = 996612 850x645
Select picture or schematic to display from thumbnails on the right and click for download.
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Brand
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Grunow (trade name) | ||||
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| Year: 1933 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Valves / Tubes | 5: 78 6F7 75 43 25Z5 |
| Main principle | Superheterodyne (common); ZF/IF 455 kHz; Anode bend detection |
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| Tuned circuits | 5 AM circuit(s) |
| Wave bands | Broadcast only (MW). |
| Details | |
| Power type and voltage | AC/DC-set / 110 Volt |
| Loudspeaker | Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm |
| Power out | |
| from Radiomuseum.org | Model: Grunow 502A Ch= 5-B - General Household Utilities Co |
| Material | Wooden case |
| Shape | Tablemodel without push buttons, Mantel/Midget/Compact up to 14 |
| Dimensions (WHD) | 11.5 x 8 x 6 inch / 292 x 203 x 152 mm |
| Notes | Resistance line cord. Steins dating is in error. There is also a model 502 using chassis 5-C and different tube complement for battery operation. |
| Net weight (2.2 lb = 1 kg) | 3.6 kg / 7 lb 14.9 oz (7.93 lb) |
| External source of data | Stein's volume 2 page 152 |
| Source of data | - - Data from my own collection |
| Mentioned in | The Radio Collector's Directory and Price Guide 1921 - 1965 ( ) |
| Literature/Schematics (1) | Rider's Perpetual, Volume 4 = ca. 1934 and before (see chassis for model 501) |
Model page created by Marvin J. Glassman. See "Data change" for further contributors.
All listed radios etc. from General Household Utilities Co. (Grunow); Chicago Ill.
Here you find 138 models, 100 with images and 126 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
