Antique radios, Old Time Radios
PT25
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Country:
Great Britain (UK)
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| Identical to |
PT25
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| Similar
Tubes |
Normally replaceable-slightly different:
PT25H
Other class quality (otherwise equal):
DET7
Multiple differences or of other kind:
DET8
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| First Source
(s) |
Aug.1932 : Wireless World (The), London (WW, 79) p168
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Successor Tubes
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PT25H
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