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Old 06-21-2019, 01:50am   #7
mrvette
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L O N G tyme ago, up on Pa. I saw a display of those Otto engines and many others, some museum not so far from Carlisle.....York??

neat.......

and when used to electronics, the frequencies are just super slow by my standards....figger 600 rpm idle speed on an IC engine.....div by 60 that ten per second, so every other go round of the piston is 5x/second firing the plug, or 5 cycles per second, 60 cycles is power line freq.....so yeh, modern machines are in a HURRY!!!!!

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