TELEPHONE No. 264
The telephone was supplied without a base plate.
The Bellset facilitated relay control of operator recall and also contained the active components for transmission.
Judging by the introduction date there was most probably no Mark 1. The Dial, Automatic No. 13LA was replaced with the Dial, Automatic No. 20LA in 1961.
Telephone No, 264F was fitted with a Dial, Automatic No. 13FA, whilst the Telephone No. 264L was fitted with a Dial, Automatic No. 20LA.
The frame, Part No. 1/DSW/16, that supports the switch hooks also has terminals and contact springs attached. The contact springs on this telephone have two contacts per spring (Springset Part No. 1/SSP/704).
The handset is a Telephone No. 164 (Mark 2).
Circuit diagram - N364.
Drawing - 90547 (Mark 2).
Specification - S78.
Internal view - Note the additional terminals added within the telephone
Last revised: May 23, 2023