TELEPHONE No. 248
This combination was the main phone on
5, 5A, 7 & 7A.
There are two versions of this telephone, the Mark 1 and Mark 2 and these made different use of terminals 6 and 8 as the two phones were wired differently. Terminals 6 and 8 were reversed which meant that the green handset wire could be on one of two terminals. The Mark 1 used terminal 6 whilst the Mark 2 used terminal 8.
The Mark 1 has a Coil, Induction No. 24 whilst the Mark 2 has a Coil, Induction No. 27.
Spring 1 of the cradle switch is spring-set is adjacent to the mounting.
The Telephone No. 248 pictured below is mounted on a Bellset No. 39.
Telephone (Mark 2) includes (Rate Book 1946 and 1956):-
Circuit Diagram - N348.
Drawing - 62828.
Telephone No. 248 on a Bellset No. 39
Last revised: December 26, 2021