CLOCKS



ADVERTS - Speaking Clock posters
BRILLE CLOCK - Shipped to Lagos by GEC
CALCULAGRAPH - Used on trunk switchboards
CLOCKS - The full list
CLOCK UNIT, GMT 34
CLOCK UNIT, GMT 35
DISTRIBUTION OF TIME SIGNALS - Exchange buildings
DISTRIBUTION OF TIME SIGNALS - General
DISTRIBUTION OF TIME SIGNALS - GMT to CTO and Rugby  - 1930
INSTALLATION IN PUBLIC OFFICES
INSTALLATION IN TELEPHONE EXCHANGES
MECHANICAL CLOCKS - Description
PULSE CLOCKS - Description
RADIAL TIME RECORDERS - Clocking in/out machines
SPEAKING CLOCK - Mark 1
SPEAKING CLOCK - General Information on all clocks and voices
SYNCHRONOUS CLOCKS - Description
TIM - Speaking clock
UNIT, CLOCK PULSE No. 1
WATCHES
WATCHMANS SYSTEM - Gents


EDDIE MAIR TALKS ABOUT THE SPEAKING CLOCK

ERICSSON TIME RECORDERS

IPOEE ARTICLE ON TIME CONTROL IN THE GPO - 1930

GET YOUR PULSE CLOCKS WORKING FOR £5
 


Prefixes

A - Pulse type (DC)
B - Synchronous type (AC mains)
C - Mechanical type (non-electric)

Mechanical clocks are always odd numbers.


QUICK FIND - Clock Thumbnails

 

Click here for Simon Taylor's GPO Clock site

 
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Last revised: July 25, 2022

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