Radio Antica e Radio d'epoca
PR1
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Stato:
Federazione Russa
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| Identico a |
PR1
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| Prime serie |
1919
??
Saga of the Vacuum Tube, Tyne page 273
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| Sostituisce i modelli |
TM
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| Zoccolo |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Utilizzata per |
Militaire et/ou Services Publics |
| Filamento |
Direct / Battery = |
| Descrizione |
Tube designed by Mikhail Alexandrovich Bontsch-Brujewitsch. He studied the design of the French TM tube and developed a similar style tube. The main difference was that the anode was a sheet of aluminium. This was necessary as normal metals used in anodes was not available at the time. According to Tyne, the tube was perfected towards the end of 1919.
Testo in altre lingue
(può variare)
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| Bibliografia |
Saga of the Vacuum Tube, Tyne Pages 272-273
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PR1: Fin Stewart
Fin Stewart
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Just Qvigstad
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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