TELEPHONE No. 15
wall intermediate telephone with switchable extension facility, used in CBS areas.
For 1 exchange line and 1 extension with inter-communication. For intermediate station.
Complete with a generator, trembler bell and magneto bells.
Fitted with Transmitter No. 6 on early types and Transmitter No. 2 on later variants.
Circuit diagram - N115.
Telephone includes (1928):-
Frames, notice, No. 2, and Labels No. 53, will not be maintained in these
Last revised: September 19, 2019