Antique radios, Old Time Radios
PM1A
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.1 Ampere / Direct / Battery = |
| Description |
Gm=1.2mA/V at Va=100, Ia=0.5mA and -Vg1=0.5
The letter combination 'PM' in the name of many MULLARD valves of the 1920s refers to the cooperation between PHILIPS / NL and MULLARD / GB in valve development, that was launched in 1923.
Text in other
languages (may
differ)
|
| Information source |
L'ABCDaire des lampes de TSF des jeunes années p. 79
- - Manufacturers Literature
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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PM1A: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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PM1A: From the collection of Andy Cowley (29MAR1948-23APR2012)
Jay Kinnard
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
Collection of
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