Antique radios, Old Time Radios
R1A
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Country:
Japan
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| Identical to |
R1A
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| Similar
Tubes |
Normally replaceable-slightly different:
TM
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Military and/or Government |
| Filament |
Vf 4 Volts / If 0.09 Ampere / Direct |
| Description |
This tube was a high vacuum copy of the French TM tube
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Dimensions (WHD)
incl. pins / tip |
x 118 x 55 mm / x 4.65 x 2.17 inch |
| Weight |
52 g / 1.83 oz |
| Information source |
-- Collector info (Sammler) Dawn of Tube Production in Japan - Ohtsuka.
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R1A: Fin Stewart
Fin Stewart
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Just Qvigstad
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