Antique radios, Old Time Radios
RD25A
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Country:
Czechoslovakia
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| Identical to |
RD25A
= P27/500
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| Similar
Tubes |
Normally replaceable-slightly different:
PX25
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 2 Ampere / Direct |
Dimensions (WHD)
incl. pins / tip |
x 163 x 65 mm / x 6.42 x 2.56 inch |
| Information source |
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 113, p. 148
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RD25A: Fin Stewart
Fin Stewart
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Just Qvigstad
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Collection of
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