OSCILLATOR No. 23A


Battery or Mains operated portable valve oscillator, working at 1000 c/s interrupted at 1-30 P.P.S.

It was designed for use with Amplifier No. 55A and Amplifier No. 100A for Cable track locating and location/identification of cable pairs.

Contained in a Case No. 57B.

To be Requisitioned Separately:-
1 x Satchel, No. 2.

Drawing - 63985.

Circuit diagrams - LD135 and SA9092.





BACK Home page BT/GPO Telephones Search the Site Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: August 11, 2025
FM