402 ED 3
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United American: 402 ED 3 [Radio] ID = 812963 900x654
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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American Bosch Magneto | ||||
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Brand |
Essex | ||||
| Year: 1934 | Category: Broadcast Receiver - or past WW2 Tuner | ||||
| Valves / Tubes | 5: 6F7 78 75 43 25Z5 |
| Main principle | Superheterodyne (common); ZF/IF 456 kHz |
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| Tuned circuits | 5 AM circuit(s) |
| Wave bands | Broadcast (MW) and Tropical/Marine/Police Band(s) = 150-200m. |
| Details | |
| Power type and voltage | AC/DC-set / 105-125 Volt |
| Loudspeaker | Electro Magnetic Dynamic LS (moving-coil with field excitation coil) |
| Power out | |
| from Radiomuseum.org | Model: 402 ED 3 - United American Bosch Magneto |
| Material | Wooden case |
| Shape | Tablemodel, with any shape - general. |
| Dimensions (WHD) | 267 x 190 x 135 mm / 10.5 x 7.5 x 5.3 inch |
| Notes | A peculiarity of this radio is the ability to receive the old Police broadcast frequencies.
In the rear panel there is a lever switch that lets you choose between the standard broadcast band and Police band.
First edition has the medium waves only, the peculiarity edition 2 and 3 have, is the ability to receive the old Police broadcast frequencies. Una particolarità di questa radio è la possibilità di ricevere le frequenze sulle quali comunicava la Polizia all' epoca, infatti sul retro dell'apparecchio c'è un commutatore a leva che permette di scegliere tra le onde medie e la banda della Polizia (onde corte). La prima edizione del 402 ha solo le onde medie, la particolarità delle edizioni 2 e 3 è la possibilità di ricevere le frequenze sulle quali comunicava la Polizia all’ epoca, infatti sul retro dell’apparecchio c’è un commutatore a leva che permette di scegliere tra le onde medie e la banda della Polizia (onde corte). |
| Net weight (2.2 lb = 1 kg) | 3.5 kg / 7 lb 11.3 oz (7.709 lb) |
| External source of data | Ernst Erb |
| Source of data | The Radio Collector's Directory and Price Guide 1921 - 1965 |
| Circuit diagram reference | Rider's Perpetual, Volume 5 = ca. 1934 and before |
| Mentioned in | Collector's Guide to Antique Radios 4. Edition |
| Literature/Schematics (1) | Riders 5-34 ; 6-9, 10 |
| Literature/Schematics (2) | Machine Age to Jet Age II |
All listed radios etc. from United American Bosch (Magneto Corporation); Springfield (MA)
Here you find 412 models, 158 with images and 269 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
