You can either watch the films below on this page,
or visit my YouTube channel using the following link which contains many more not shown here.

http://www.youtube.com/user/xenon53827

This explains exactly what the GPO type 46 master clock does.

Correctly hanging a GPO Type 36 clock

A Very useful clock maintenance stand.

GPO clock system update - February 2019

The difference between 1 or 6 second advance.

Advancing the system clocks forward for Summertime.

The clock No. 28 is a seconds indicating clock.

The clock No. 32 was used to synchronise the 1 Second clocks (No. 28).

The clock No. 38 is unusual as it works from a pulse every 6 seconds. The first reel shows the hours, the second and third show the minutes whilst the last reel shows tenths of a minute.

Part 2 of the restoration of my Clock No.46. I have included this as it explains how to fake old wiring. Part 1 is on my youtube channel, link at the top of this page.

More on faking old wiring.

This older vid shows a Master Clock No. (or type) 36 with a GMT 34 relay unit and some earlier slave clocks.

This is an abstract version showing the previous shop clock system.

With the new room now completed, in went the first stage of the clock system. Full duplication of two masters and two relay units with the change over switch allowing one set to be serviced whilst the other continued running the system.

Visit my YouTube channel using the following link which contains many more videos not shown here.

http://www.youtube.com/user/xenon53827