Marconi instruments valve voltmeter

Marconi instruments valve voltmeter, Type TF428BN, s/n 24926

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Marconi instruments valve voltmeter, Type TF428BN, s/n 24926
Science Museum Group
© The Board of Trustees of the Science Museum

Marconi instruments valve voltmeter, Type TF428BN, s/n 24926

Details

Category:
Radio Communication
Object Number:
1985-64
type:
voltmeter
credit:
Babb, A.H.