Radios antiguas y Radios de Colección
S23
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País:
Gran Bretaña (GB)
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Marca:
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| Tipo: |
Screen-grid Tetrode RF/IF-Stage |
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Ca. 1925 up to 1945 rare. |
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| Idéntica a |
S23
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| Fuente principal
(es) |
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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| Usada en |
Radio/TV-reception etc. |
| Filamento |
Vf 2 Volt / If 0.1 Ampere / Direct / Battery = |
| Descripción |
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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Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip |
50 x 130 x mm / 1.97 x 5.12 x inch |
| Literatura |
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
Anónimo 10 Coleccionista
Mas ...
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Just Qvigstad
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S23: Marconi Advertisement
Anónimo 15 Coleccionista
Mas ...
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Número de
modelos en Radiomuseum.org con esta
válvula:19
Colección personal de
Colección personal de un miembro de D |
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