McVitie Weston valve collection
- Made:
- 1928 in Canada and United States
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LicenseCosmos output triode valve, type AC/S, C5+tt base
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Cosmos output triode valve, type AC/S, C5+tt base, (RMW/G75 - McVitie Weston number), by Metropolitan-Vickers Electrical Company Limited, 1928.
