CTO - TELEGRAPH APPARATUS

Amplifier racks serving phonogram room - 1935

Automatic miscellaneous rack - 1934

Concentrator and relay test panel 3rd floor - 1932

Distribution rack equipment - 1936

London and Leeds switches - 1936

Observation rack - 1936

Apparatus racks - 1947

Telegraph equipment TG744 relay test panel - 1934

Telegraph equipment TG748 concentrator - 1934

Telegraph equipment TG750 relay test panel - 1934

Telegraph equipment TG803 observation and test set - 1934

Telegraph equipment TG835 test board - 1934

Telegraph equipment TG865 synchroscope panel - 1934

Telegraph equipment TG866 control board - 1934

Telegraph equipment TG867 fuse board - 1934

Telegraph equipment TG873 panel for LPS circuits - 1934

Telegraph equipment TG873 panel for LPS circuits - 1934

Telegraph equipment TG928 relay - 1934

Teleprinter private wire equipment run 25  - 1932

VF terminal ground floor - 1937

Double pneumatic puncher - 1915

Double pneumatic puncher - 1915

Double pneumatic puncher c126 - 1902

Chronopher control clock - 1924

Chronopher - At the UK Central Telegraph Office, London.
This was operated by the Greenwich time system via a 7 mile cable and this Chronopher
then transmitted the signal to Rugby via 94 miles of cable.
Picture dated 1928

Switch teleprinter  TG986 - 1936

Last revised: August 20, 2023