Radio Antica e Radio d'epoca
AZ21_9pin
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Stato:
Olanda
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| Identico a |
AZ21_9pin
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| Valvole
simili |
Other base and data slightly different:
AZ21
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| Sostituisce i modelli |
AZ1
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Evoluzioni
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1941
AZ21
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| Zoccolo |
Loctal-9-Pin (B9G)
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| Filamento |
Vf 4 Volt / If 1.3 Ampere / Direct |
| Descrizione |
The Philips 21- "Key Base" tubes were initially designed in 1940 with the 9-pin base B9G like the EF50. The later series production from 1942 on however was changed to the 8-pin Locktal-base B8G designed by Sylvania.
Testo in altre lingue
(può variare)
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| Bibliografia |
- - Manufacturers Literature
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AZ21_9pin: original Philips documents
Jacob Roschy
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Just Qvigstad
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AZ21_9pin: original Philips documents
Jacob Roschy
Segue ...
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Collezione di
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| Conformità dei dati |
Ulteriori informazioni |
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