Rerurn to Romy the Cat's Site


In the Forum: Analog Playback
In the Thread: A longer turntable belt.
Post Subject: Re: belt slippagePosted by guy sergeant on: 2/3/2006
Hi Romy,

What kind of bearings are going to be supporting 42 and 62 Kg quietly?
I remember a Swedish friend making a 75Kg gunmetal platter some years ago. Sounded very nice as long as the bearing lasted (which wasn't long!)

Would there not be a benefit in turning the flywheel much faster and using gearing ie a small pulley above to 'drive' the platter supporting the record (a little like what the guy in Greece did)

If you deliberately allow slippage, the benefit of having a second heavy platter is surely lost as its kinetic energy cannot be usefully transmitted (when required) to the disc playing platter.  The high mass, thread driven decks like the Melco relied almost entirely on the platters mass not the motor power or the rotational energy in any external flywheel.

If it's speed stability you're after, give up these rubber belts, get an SP10 Mk2 in a decent plinth and worry about something else!

Rerurn to Romy the Cat's Site