Antique radios, Old Time Radios
610SG
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Country:
Great Britain (UK)
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| Identical to |
610SG
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| Similar
Tubes |
Normally replaceable-slightly different:
6075SG
; A642
; PM16
Heater different:
220SG
; 410SG
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| First Source
(s) |
Aug.1930 : Philips Bulletin R1164, p. 16
|
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 4 Volts / If 0.1 Ampere / Direct / Battery = |
| Description |
Ra 200k ohms; gm = 1mA/V at Vg=-1.5 and Va=150.
Price 1.1 GBP in 1929.
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| Information source |
- - Manufacturers Literature
History of the British Radio Valve to 1940 p.145 & 183
Röhren-Vademecum; P.H. Brans; Antwerpen
Babani, International Radio Tube Encyclopaedia
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