Radio Antica e Radio d'epoca
230D
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Stato:
USA (Stati Uniti d'America)
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| Identico a |
230D
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| Valvole
simili |
Other base and data slightly different:
UV199
; UX199
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| Prime serie |
1925
Saga of the Vacuum Tube, Tyne page 295, 297
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Evoluzioni
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D-94230
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| Zoccolo |
SPECIAL TUBEBASE in general
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| Filamento |
Vf 3.3 Volt / If 0.06 Ampere / Direct / Battery = |
| Descrizione |
Receiving triode, T8 bulb on four-prong base with locating pin and wired like UX-199. Mu = 8.5, Gm 0.38 to 0.56mS. Grid and filament spring supported by glass bead from top of plate. Developed for Northern Electric as improved UX-199.
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| Bibliografia |
Tube Lore (I)
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230D: Fin Stewart
Fin Stewart
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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