Antique radios, Old Time Radios
47M
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Country:
Australia
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| Identical to |
47M
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| Similar
Tubes |
Normally replaceable-slightly different:
47
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| Base |
UY-Base, 5 Pins (USA, April 1927)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2.5 Volts / If 1.75 Ampere / Half indirect / Specified voltage AC/DC |
| Description |
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.
|
Dimensions (WHD)
incl. pins / tip |
x 108 x 45 mm / x 4.25 x 1.77 inch |
| Weight |
51 g / 1.80 oz |
| Information source |
-- Collector info (Sammler) TCA yahoogroup
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47M
Emilio Ciardiello
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