Antique radios, Old Time Radios
QPT2
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Country:
Great Britain (UK)
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| Identical to |
QPT2
= QP21
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| Similar
Tubes |
Normally replaceable-slightly different:
QP22B
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| Base |
British-7-Pin, old (M7A)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.4 Ampere / Direct / Battery = |
| Description |
For Quiescent Push-Pull operation.
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| Information source |
- - Manufacturers Literature Ferranti Data 1956
History of the British Radio Valve to 1940 p. 188
Babani, International Radio Tube Encyclopaedia
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Just Qvigstad
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line up.
[rmxtube-en]
| Data Compliance |
More Information |
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