Antique radios, Old Time Radios
S625
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Country:
Great Britain (UK)
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Brand:
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| Developer: |
MO Valve Co. Ltd.; GB |
| Tube type: |
Screen-grid Tetrode RF/IF-Stage |
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Ca. 1925 up to 1945 rare. |
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| Identical to |
S625
= DES625
|
| Similar
Tubes |
Normally replaceable-slightly different:
ARS6
; CV1317
Multiple differences or of other kind:
210SG
|
| First year |
1927
Tube leaflet collection E.Erb Analysis by original leaflets
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| Base |
SPECIAL TUBEBASE in general (Codex=sp)
Base on each end.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6 Volts / If 0.25 Ampere / Direct / Battery = |
| Description |
Vf given as 5 to 6 volts. Va=120, Vs=80, Z=175k, Amp=110. (Dowsett Handbook Rev 1923.)
Grid and filament connections from 3 pin base . Anode and screen connections from 2 pin base. Made with Osram, Marconi and Gecovalve trade names. Also made by Marconi in Italy.
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Dimensions (WHD)
incl. pins / tip |
x 127 x 35 mm / x 5.00 x 1.38 inch |
| Weight |
44 g / 1.55 oz |
| Tube prices |
2 Tube prices (visible for members
only)
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| Information source |
- - Manufacturers Literature Pamphlet 243
- - Manufacturers Literature
History of the British Radio Valve to 1940
The Saga of Marconi Osram Valve
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S625: P.den Boer
Wolfgang Holtmann
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S625: own collection
Peter den Boer † 2025
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
Collection of
Collection of a member from D |
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