Radio Antica e Radio d'epoca
FB49
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Stato:
USA (Stati Uniti d'America)
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| Identico a |
FB49
= UX897
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| Valvole
simili |
Sostituita normalmente - piccola diff.:
38296
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| Zoccolo |
Edison big E27 = 27 mm
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| Utilizzata per |
Industrial |
| Filamento |
Direct |
| Descrizione |
This is a ballast tube (baretter or resistance lamp) designed to be placed in series with a circuit to maintain constant current. This tube is listed on page 48 of "The Story of Electronic Development at the General Electric Company". Dated Dec. 10th, 1930. Also available with UX base.
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Dimensioni
(LxAxP)
incl.pins/tip |
x 64 x 25 mm / x 2.52 x 0.98 inch |
| Bibliografia |
- - Manufacturers Literature
Tube Lore (II) p. 81 &211
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Just Qvigstad
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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