Hello Lewm,
No, I don't agree with Dertonarm's contention. If you reread my posts, you'll find that I'm trying to point out that there are several ways of approaching the challenges to run a platter at constant speed, ALL of which are flawed in one or several ways, as soon as we are dealing with reality.
I am very much familiar with Chris's table, in fact I suggested the use of an eddy current brake acting on the platter as soon as he started making platters with brass or aluminum bottom layers and I heard both a prototype and the first production model in comparison to his then top of the line tape driven tt. His direct drive turntable offers exceptional speed stability(significantly better than his tape driven decks) and is proof that it can be done(and, again, look at one of the last generation cutting lathes).
I'd prefer to discuss real world experiences, but Dertonarm made such a big deal out of the supposed mediocrity of most, if not all contemporary turntables that there simply was no point in "getting real".
Strangely, I have not gotten a response from him...
Best wishes,
Frank
No, I don't agree with Dertonarm's contention. If you reread my posts, you'll find that I'm trying to point out that there are several ways of approaching the challenges to run a platter at constant speed, ALL of which are flawed in one or several ways, as soon as we are dealing with reality.
I am very much familiar with Chris's table, in fact I suggested the use of an eddy current brake acting on the platter as soon as he started making platters with brass or aluminum bottom layers and I heard both a prototype and the first production model in comparison to his then top of the line tape driven tt. His direct drive turntable offers exceptional speed stability(significantly better than his tape driven decks) and is proof that it can be done(and, again, look at one of the last generation cutting lathes).
I'd prefer to discuss real world experiences, but Dertonarm made such a big deal out of the supposed mediocrity of most, if not all contemporary turntables that there simply was no point in "getting real".
Strangely, I have not gotten a response from him...
Best wishes,
Frank