Antique radios, Old Time Radios
S25A
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Country:
Great Britain (UK)
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| Identical to |
S25A
= CV16
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Successor Tubes
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S28A
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| Filament |
Vf 4 Volts / If 0.65 Ampere / Half indirect |
| Description |
The very early disc seal triode specifically developed in Great Britain to operate in a grounded grid amplifier. Anode to grid clearance 0.6mm, cathode surface 3 by 6mm.
Gm 6.5mA/V at 6.5ma anode current, gain 100.
The tube was introduced early in 1941 and standardized as CV16.
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
-- Original-techn. papers. Callick, Metres to Microwaves, pgs. 43 to45
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