Antique radios, Old Time Radios
IS3
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Country:
Netherlands
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| Identical to |
IS3
|
| Similar
Tubes |
Normally replaceable-slightly different:
E442
|
| Production stop |
Feb.1938 |
|
Successor Tubes
|
5-442
|
| Base |
Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Top contact screw type.
|
| Filament |
Vf 4 Volts / If 1 Ampere / Indirect |
Dimensions (WHD)
incl. pins / tip |
43 x 133 x 33 mm / 1.69 x 5.24 x 1.30 inch |
| Weight |
57 g / 2.01 oz |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices group 153
- - Manufacturers Literature 1931
|
|
IS3: Telefunken Werkstattbuch
Wolfgang Bauer
|
Just Qvigstad
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IS3: own collection
Peter den Boer
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Collection of
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