Stentorphone valve

Fluted Stentorphone valve in ebonite.

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Fluted Stentorphone valve in ebonite.
Science Museum Group
© The Board of Trustees of the Science Museum

Fluted Stentorphone valve in ebonite.

Details

Category:
Sound Reproduction
Object Number:
1928-9
type:
valve
credit:
Gaydon, H.A.