GEC K7952All the telephones below are specially designed for use with GEC
Intercom Telephones where it is desired that certain offices shall be able to ring and
speak both ways to a central station, but not to intercommunicate.
They have no induction coils and are made of polished walnut with all the external metal
work having an oxidised finish.
K
7952
Wall pattern battery reply call telephone, comprising "Manchester" shot
transmitter, electro magnetic watch receiver, trembler bell (25 ohm) automatic switch
hook, auto resetting ring key and impedance coil.
Dimensions: 10 x 7 x 5.5 inches
Cost in 1928 was £3.0.0
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