First (single or polyphase) AC Commutator, 1887.

First (single or polyphase) AC Commutator, 1887.
3 9 c m
40cm
actual image size: 32cm x 31cm

Description

Commutator motor made by Siemens.

Image Details

Image Ref.
 
10207887

© Science Museum / Science & Society Picture Library

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