Antique radios, Old Time Radios
220VSG
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Country:
Great Britain (UK)
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| Identical to |
220VSG
= CV1028
= VR28
|
| Similar
Tubes |
Normally replaceable-slightly different:
176_Tetrode
; PM12V
; S215VM
; SG2V
; VS2
|
| First year |
22.Nov.1935
Wireless World (The), London (WW, 79)
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| First Source
(s) |
30.Dec.1931 : Wireless World (The), London (WW, 79) p732
1932 : History of the British Radio Valve to 1940 p.145 &193
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er)
Top contact screw type.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2 Volts / If 0.2 Ampere / Direct / Battery = |
| Description |
This is a variable mu tube.
|
| Information source |
Babani, International Radio Tube Encyclopaedia p. 30 & 31
Universal Vade-Mecum, Electron Valves and Semiconductor Devices Section 177, p. 306
Taschenbuch zum Röhren-Codex 1948/49
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220VSG: Manufacturer's Literature
Emilio Ciardiello
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Just Qvigstad
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220VSG: COSSOR VALVE MANUAL 1935-6
Jose Casas-Avalos
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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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