Siemans Polarized Relay

Made:
1890 in London
Siemans Polarized Relay

Siemans Polarized Relay
Science Museum Group
© The Board of Trustees of the Science Musuem

Siemans polarized relay, 1890.

Details

Category:
Electricity Supply
Object Number:
Y1978.20.4
Materials:
brass (copper, zinc alloy), copper (alloy), metal (unknown), wood (unidentified) and glass
Measurements:
overall: 140 mm x 105 mm x 125 mm, 80 mm,
type:
relay
credit:
Gift of Mr Stewart