Antique radios, Old Time Radios
MPT4_7pin
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| Identical to |
MPT4_7pin
|
| Similar
Tubes |
Other base:
MPT4
Other base and data slightly different:
MPT4_5pin_Catkin
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| Successor Tubes |
MKT4
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| Base |
British-7-Pin, old (M7A)
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| Filament |
Vf 4 Volts / If: 1 Ampere / |
| Literature |
Taschenbuch zum Röhren-Codex 1948/49
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