GEC K7750

Direct Working Wall Telephone
(Without Induction Coil)

Consisting of Manchester Shot Carbon Transmitter with Nickel plated Metal Mouthpiece, Double Pole Watch Receiver and Flexible Cord, Automatic Switch Hook, Call Push, Trembling Bell, and the necessary Terminals.

Woodwork of solid well seasoned polished Walnut with exterior metal parts Nickel plated.

Price in 1908 was £0.15.9

Taken from the GEC Telephone Catalogue, K Section, 10th Edition, 1908

K7750

Direct Working Wall Telephone
"Both Way"

Walnut cased, wall pattern telephone with 5 ohm trembler bell and inset transmitter.  There is no induction coil.

Fitted with carbon granule transmitter. This phone is 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.

The case is made of polished walnut wood with all the external metal work having an oxidised finish.

Dimensions: 8.5 x 6 x 5 inches.

Cost in 1916 was £0.16.0
Cost in 1926 was £2.0.0
Cost in 1932 was £1.17.6
Cost in 1935 was £1.17.6


Found in the 1916, 1926, 1932 and 1935 Catalogues and the GEC Telephones & Fire Alarms Catalogue 1926.

Additional Pictures

External View

 

Internal view

 

Circuit Diagram KS6350

 

Last revised: December 09, 2024