Catalogue de radios anciennes
Polytron-4fach
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Pays:
Allemagne
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| Identique à |
Polytron-4fach
= Politron-4fach
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| Première série |
1927
Tube leaflet collection E.Erb Analysis by original leaflets
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| Première source |
Sep.1927 : Funk Bastler Heft 39
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| Culot |
SPECIAL TUBEBASE in general
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| Utilisé par |
Radio/TV-reception etc. |
| Chauffage |
Vf 3.5 Volt / If 0.35 Ampère / Direct / Battery = |
| Description |
The Polytron (Politron) brand tubes were made by Dr. G. O. Spanner, GmbH. This company also produced dual triodes and other tubes under the Delta name. The Vierfach-Röhre uses a series filament for the 4 sections which run at .35 amps at 3.5 volts. The plates and grids are made in copper, an unusual element material for this time period. An internal shield, in the form of an X is used between the sections. The base is very special and does require a special matching socket.
Texte dans d'autres
langues (peut différer)
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| Bibliographie |
Bastelbriefe der Drahtlosen 1927, H.10
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Polytron-4fach: Funkbastler 1928/01
Wolfgang Eckardt
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Polytron-4fach: Bastelbriefe der Drahtlosen, H.10/1927
Wolfgang Eckardt
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Collection de
Collection d'un membre de D |
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| Mentions légales |
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