Re: Master Clock contact spark quenching
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Can anyone explain why we stick with the Synchronome resistor?
I can make a few guesses;
Synchronome and G&J used a resistor across each coil (both master movement and slave dials) whereas Gents only fitted a (capacitor based) system in the master - not the slave dials. Gents do however have very heavy duty contacts.
One manufacturer whom used an interesting ‘different’ approach was the original Princeps system. A very light contact based on the pendulum rod ‘made’ the contact (there is no spark on the ‘make’) - but the current break was done by a much heavier duty ‘break’ contact - driven by an electromagnet giving a fast break. The light contact set only opened after the current had already stopped - so never arcs.