My “GPO Clock 36” electromechanical master clock, made by Gents of Leicester in 1975.
It’s a pendulum clock that generates a pulse every 30 seconds, used to drive synchronised clocks and equipment around a telephone exchange.
The clock face at the top of the clock was assembled by me from an old mantle clock case and a scrap movement. I had to rewind its coil as a previous owner had applied mains to it directly, instead of the 5V it was expecting.
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Негізгі бет Ғылым және технология Electromechanical Master Clock 36
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