Wade Bequest: ORA triode radio valve

SMG00237712

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SMG00237712
Science Museum Group
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Wade Bequest collection of valves: Mullard ORA triode radio valve. ORA = oscillate, rectify, amplify. With BBC stamp. S/N: H204. With B4-2 base and top seal. Early dull emitter triode. Paper label: W29.

Details

Category:
Collection Unassigned
Object Number:
1972-343/108
type:
triode valve
taxonomy:
  • object genre
  • component parts
  • electrical component
credit:
Wade, J.C.F.