@carlsbad2 And you.
Turntable weight affects speed
I tried a Thorens tt weight on my Thorens TD-850 belt-drive tt. It noticeably slowed it down. It seems like extra weight on the bearing would affect any tt, but what do I know? Is a speed control (and strobe/test pattern) generally required to use a turntable weight while maintaining the proper speed?
Showing 3 responses by clearthinker
@carlsbad2 "the load on the belt/motor should be the same with or without the weight" (INCORRECT physics). You are possibly thinking of Newton's Law of conservation of momentum. But if the platter is spinning and you cut the power, it won't spin forever. Ergo it takes power to keep it spinning. How much power? I clearly takes more power if the platter + record weight is heavier as the moment of inertia is greater. Pace @testpilot , the point you make is correct but there will still be more inertia and this may be sufficient to prevent the motor on the Thorens keeping it moving at the same speed. Yes, check out the motor, belt and clean and re-oil the bearing |
@carlsbad2 So you think your turntable will spin forever, regardless of how heavy it is, without any further energy applied to it. Welcome to the world of perpetual motion. Rudimantary? Huh. |