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Vintage Marconi Instruments Ltd AC panel voltmeter, with Weston / Sangamo Weston Ltd, Enfield, Middlesex markings.
The dial is marked:
VOLTS A.C.
MARCONI INSTRUMENTS LTD.
WESTON
T.M. 597D/31
No. AF 22870
Features several graduated scales including a red dB scale, together with multiple rear connection terminals marked with values including 4, 8 and 80, plus polarity markings.
A substantial vintage panel instrument originally intended for professional electronic, radio, telecommunications or test equipment.
Condition: Vintage used condition with general age-related marks, scratches and wear to the casing. Glass appears intact and the dial remains clear. Untested, so functionality cannot be guaranteed and it is being sold as a collectable/display or restoration item. Please study photographs carefully.