Antique radios, Old Time Radios
PM2BA
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Country:
Great Britain (UK)
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| Identical to |
PM2BA
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| Similar
Tubes |
Normally replaceable-slightly different:
BB240A
; CV1163
; K33B
; PD220A
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Successor Tubes
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NR35
CV1163
|
| Base |
British-7-Pin, old (M7A) (Codex=No)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.2 Ampere / Direct / Battery = |
| Description |
Designed for class B operation. With small grid bias it results in improved reproduction at low signal levels (1935 data book).
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| Information source |
History of the British Radio Valve to 1940 p. 150 & 167
-- Original-techn. papers.
- - Manufacturers Literature
Babani, International Radio Tube Encyclopaedia
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PM2BA: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7
Collection of
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