Radio Antica e Radio d'epoca
GI-21
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Stato:
USA (Stati Uniti d'America)
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| Identico a |
GI-21
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| Valvole
simili |
Altra base:
GI-10
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| Zoccolo |
SPECIAL TUBEBASE in general
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| Utilizzata per |
Industrial |
| Filamento |
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| Descrizione |
National Union introduced its 'Inditron' line of numeric indicators in 1954, well before the registration of the Nixie tubes by Haydu Brithers.
Each digit from 0 to 9 was connected to one of the 10 base pins. No common electrode, but the digit to light-on had to be driven to ground potential while other digits acted as anode.
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| Bibliografia |
-- Collector info (Sammler)
- - Manufacturers Literature
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Collezione di
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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