TELEPHONE No. 716
Used as part of the LST No. 1A and has capacity for 4 additional buttons.
The telephone has a loudspeaker in place of the dial.
It superseded the Telephone No. 708 which only had provision for one additional button.
This is a Telephone No. 710L which is modified for use with Control Unit No. 8A & Amplifier No. 138B with Connector No. 1018A.
Circuit Diagram - N816.
Drawing - 91718.
Specification - S689.
Last revised: February 10, 2023