Antique radios, Old Time Radios
OM4
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Country:
Great Britain (UK)
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| Identical to |
OM4
= CV1055
= CV352
= AR21
= DH147
= ZA3497
= EBC33
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| First Source
(s) |
1937 : History of the British Radio Valve to 1940 p.181
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf)
Top contact with a cap.
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC |
| Description |
The picture shown here confirms that Cossor also sourced tubes from the Mullard/Philips group.
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| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
Taschenbuch zum Röhren-Codex 1948/49
- - Manufacturers Literature
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OM4: Telefunken Werkstattbuch
Wolfgang Bauer
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Just Qvigstad
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OM4: My schematic collection.
Pier Antonio Aluffi
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24
Collection of
Collection of a member from D Collection of a member from FIN Collection of a member from D |
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Variants
OM4 with tubular (straight) bulb
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