GEC (Osram)

McVitie Weston valve collection, GEC Osram valve, type R5

Wade Bequest collection of valves: small triode radio valve, by Osram-GEC

Wade Bequest collection of valves: R2A radio valve

McVitie Weston valve collection, GEC Osram valve, type R4B

McVitie Weston valve collection, GEC Osram valve, type R.4A

McVitie Weston valve collection, GEC Osram valve, type C

McVitie Weston valve collection, GEC Osram valve, type R4

McVitie Weston valve collection, GEC Osram valve, type C

McVitie Weston valve collection, GEC Osram valve, type D

McVitie Weston valve collection, GEC Osram valve, type R.2A

McVitie Weston valve collection, GEC Osram valve, type R2

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