UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Gents Pul-Syn-Etic Slave Clock Problem

mark_in_manc · 8th Mar 2018, 10:34 am

That's proper engineering, solving the minimal waste / maximal quality optimisation!

On the subject of master-slave clocks - my ITR (IBM) slaves are out of service at the moment as switch bounce seems to have them a bit inclined to run fast at random. I assume it's switch bounce, though the main switch is a mercury-in-glass-bulb tilt thing with lots of mechanical inertia, which it is hard to imagine bouncing anywhere! Oddly, the two slaves seem affected by this to a different degree. I wonder if there should be a low-pass filter somewhere (caps across the signal?) to take some of this out?

8th Mar 2018, 10:34 am	#15
mark_in_manc Octode Join Date: Nov 2011 Location: Manchester, UK. Posts: 1,875	Re: Gents Pul-Syn-Etic Slave Clock Problem - High Resistance Terminal That's proper engineering, solving the minimal waste / maximal quality optimisation! On the subject of master-slave clocks - my ITR (IBM) slaves are out of service at the moment as switch bounce seems to have them a bit inclined to run fast at random. I assume it's switch bounce, though the main switch is a mercury-in-glass-bulb tilt thing with lots of mechanical inertia, which it is hard to imagine bouncing anywhere! Oddly, the two slaves seem affected by this to a different degree. I wonder if there should be a low-pass filter somewhere (caps across the signal?) to take some of this out?