Two polarised relays used on D.C. selective ringing telephone omnibus circuit

Two polarised relays used on D.C. selective ringing telephone omnibus circuit, Newport station exchange

Details

Category:
Telecommunications
Object Number:
1971-330
type:
polarised relay
credit:
British Railways, Western

Parts

Polarised relay used on D.C. selective ringing telephone omnibus circuit

Polarised relay used on D.C. selective ringing telephone omnibus circuit

Polarised relay used on D.C. selective ringing telephone omnibus circuit, Newport station exchange.

Materials:
metal (unknown)
Object Number:
1971-330/1
type:
polarised relay
Image ©
The Board of Trustees of the Science Museum
Polarised relay used on D.C. selective ringing telephone omnibus circuit

Polarised relay used on D.C. selective ringing telephone omnibus circuit

Polarised relay used on D.C. selective ringing telephone omnibus circuit, Newport station exchange.

Materials:
metal (unknown)
Object Number:
1971-330/2
type:
polarised relay
Image ©
The Board of Trustees of the Science Museum

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