by Rob-NYC »
Fri Aug 21, 2015 4:37 am
Those later Simplex mechs were notorious for this sort of thing. The way the motor is coupled to the turntable and the attendant friction due to the long riser shaft requires a -really- good idler puck and clean, oil-free drive surfaces.
Even then, the 1500-1600 series were never really speed consistent. The 78 rpm version was slightly more consistent, probably because the faster speed and larger record acted as flywheel, but those mechs were likely just stopgap while the carousel was under development.
Rob/NYC
"If we believe absurdities, we shall commit atrocities" -- Voltaire