Antique radios, Old Time Radios
MPT4_Catkin
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Country:
Great Britain (UK)
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| Identical to |
MPT4_Catkin
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| Similar
Tubes |
Other base:
MPT4_5pin_Catkin
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| First Source
(s) |
Aug.1933 : - - Manufacturers Literature
1933 : History of the British Radio Valve to 1940 p. 189
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| Base |
British-7-Pin, old (M7A) (Codex=Ld)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 1.3 Ampere / Indirect / Specified voltage AC/DC |
| Description |
Redesigned MPT4 in Catkin form with increased power output.
Also available with 5 pin base.
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| Information source |
The Saga of Marconi Osram Valve p. 221, 222, 229 & 333
History of the British Radio Valve to 1940 p. 147 & 189
Taschenbuch zum Röhren-Codex 1948/49
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MPT4_Catkin: INTERNET PIC
Peter Hughes
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Just Qvigstad
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MPT4_Catkin: Marconi Advertisement
Anonymous 15 Collector
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13
Collection of
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