Radio Antica e Radio d'epoca
2969HighMu
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Stato:
USA (Stati Uniti d'America)
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| Identico a |
2969HighMu
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| Valvole
simili |
Sostituita normalmente - piccola diff.:
G_CeCo
; UX240
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| Zoccolo |
UX-Base (4 Pins (2 thick, USA 1924)
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| Utilizzata per |
Radio/TV-reception etc. |
| Filamento |
Vf 5 Volt / If 0.25 Ampere / Direct / Battery = |
| Descrizione |
The American company Sears Roebuck, with its head office ib Chicago sold the standard range of American designed and made radio tubes from 1925. A few small manufacturers made these tubes and they were branded "WLS" (Worlds Largest Store). The company allotted a each tube a four digit type number.
Being equivalent to the standard UX240 tube, this tube has a much higher amplification fator than rthe UX201A type. The circuit has a coupling resistor of 250,000 Ohms.
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Dimensioni
(LxAxP)
incl.pins/tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Peso |
47 g / 1.66 oz |
| Bibliografia |
Tube Lore (I) page 16.
Tube Lore (II) p. 35 & 36
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2969HighMu: Fin Stewart
Fin Stewart
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Just Qvigstad
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[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
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