Radio Antica e Radio d'epoca
47M
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Stato:
Australia
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| Identico a |
47M
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| Valvole
simili |
Sostituita normalmente - piccola diff.:
47
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| Zoccolo |
UY-Base, 5 Pins (USA, April 1927)
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| Utilizzata per |
Radio/TV-reception etc. |
| Filamento |
Vf 2.5 Volt / If 1.75 Ampere / Half indirect / Specified voltage AC/DC |
| Descrizione |
This tube, described by Don Black of TCA, was an Australian indirectly heated version of 47. Cathode connected to the center tap of the heater. The tube is a compact version of the directly heated 47, having a bulb size diameter of 45 mm. Listed in the Australian Philips Miniwatt Technical Data book, 7th edition, 1962. Mullard branded tubes with this type number were also made at the Philips factory. No other manufacturers have been located who made this tube.
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Dimensioni
(LxAxP)
incl.pins/tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Peso |
51 g / 1.80 oz |
| Bibliografia |
-- Collector info (Sammler) TCA yahoogroup
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47M
Emilio Ciardiello
Segue ...
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Just Qvigstad
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Collezione di
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| Conformità dei dati |
Ulteriori informazioni |
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