Antique radios, Old Time Radios
TP230
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Country:
Great Britain (UK)
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| Identical to |
TP230
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| Similar
Tubes |
Normally replaceable-slightly different:
TP22
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| First Source
(s) |
1935 : History of the British Radio Valve to 1940 p. 146 & 200
22.Nov.1935 : Wireless World (The), London (WW, 79)
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| Base |
B9 British 9-Pin
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.3 Ampere / Direct / Battery = |
| Information source |
Wireless World (The), London (WW, 79) Data Nov 1936
Babani, International Radio Tube Encyclopaedia p. 148 & 149
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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Just Qvigstad
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