Antique radios, Old Time Radios
B8
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Country:
Great Britain (UK)
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| Identical to |
B8
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| First year |
1924
Saga of the Vacuum Tube, Tyne Seite 390
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| First Source
(s) |
1926 : British Radio Valves - The Vintage Years: 1904-1925 p.47
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| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2.8 Volts / If 0.12 Ampere / Direct / Battery = |
| Description |
Advertisement by BTH in March 1927 announces the B8 as a new valve. It seems unlikely that Tyne's date of 1924 is correct, at least as regards availablity.
Designed for use in RC coupled ampliers.
Filament range is 1.8 to 2.8 volts
Filament current is 0.12A at 2.8V
Ra is 180k ohms at Va of 150, with an amplification factor of 50.
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| Information source |
- - Manufacturers Literature Advertisement in WW March 16 1927
British Radio Valves - The Classic Years: 1926-1946 Supplement p. 14
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B8: Fin Stewart
Fin Stewart
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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):1
Collection of
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