Antique radios, Old Time Radios
S23
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Country:
Great Britain (UK)
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Brand:
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| Tube type: |
Screen-grid Tetrode RF/IF-Stage |
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Ca. 1925 up to 1945 rare. |
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| Identical to |
S23
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| First Source
(s) |
22.Nov.1935 : Wireless World (The), London (WW, 79)
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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 0.1 Ampere / Direct / Battery = |
| Description |
Va <150 Vs<70 Gm=1.1mA/V with max volts and Ia=1.3 with -Vg=1.5. Economy screen grid battery tube of medium conductance for high frequency amplification and detection. Amplification factor 275. Also made in Italy by Officine Marconi Genoa. Early versions of the tube available with screw or metal top cap and later a metal cap.
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Dimensions (WHD)
incl. pins / tip |
50 x 130 x mm / 1.97 x 5.12 x inch |
| Information source |
History of the British Radio Valve to 1940 p. 148 & 184
- - Manufacturers Literature
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49
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S23: rtt
Anonymous 10 Collector
More ...
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Just Qvigstad
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S23: Marconi Advertisement
Anonymous 15 Collector
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):19
Collection of
Collection of a member from D |
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