Radio Antica e Radio d'epoca
C877
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Stato:
USA (Stati Uniti d'America)
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| Identico a |
C877
= B-32B
= UV877
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| Zoccolo |
Swan-Bajonett B15
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| Utilizzata per |
Radio/TV-reception etc. |
| Filamento |
Vf 45 Volt / Direct |
| Descrizione |
This tube was used in dry cell radios and was developed by General Electric in 1925. It had a short commercial life and was discontinued in 1929. The tube resembled an automotive light bulb and was connected between two of the 45 volt B batteries. It was used to protect filaments of the UV199 tubes in case of a short circuit with the battery wiring. The base was double contact Ba15D. The main use of the tube was in the RCA Radiola 25 receiver, where it was used as a current limiter at the junction of two 45 volt batteries.
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Dimensioni
(LxAxP)
incl.pins/tip |
x 56 x 35 mm / x 2.20 x 1.38 inch |
| Peso |
10 g / 0.35 oz |
| Bibliografia |
Tube Lore (II) p. 80
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Just Qvigstad
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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