Turntable speed accuracy

Dougdeacon: "Implementation, implementation, implementation. :)"

I love it when I see people doing experiment like that.

My friend owns one of the earliest version of Teres turntable before it went commercial. His motor failed couple years ago so I sent him a Papst motor salvaged from the Empire 208 with pulley diameter slightly tweaked to get accurate speed. It worked well and liked the sound and used it for a more than a year. I suggested him to try driving the Teres platter with a Technics SL-M3 direct-drive turntable via VHS tape. After some tweaks he liked it even better than the Empire that it's quieter and "overall sound wise, image is focused and sharp, more forceful with muscle, very nice." Of course, the downside is that the whole set up takes up much bigger space.

Yes, it is indeed quite easy to tell the difference when you only change the drive system. People should try something like this with a belt drive table just to get an idea how much the sound can change with a different motor. It's all reversible so it's harmless. Try it. You might like it. :-)

_______

Dear Dertonarm, Dear Syntax,

You have " a schöne Rücken"

best @ fun only

Dear Thuchan, For at least someone who looks even better
than 'us' (the Connery twins) a real suprise to show off with his behind.

Regards,

I suggested him to try driving the Teres platter with a Technics SL-M3 direct-drive turntable via VHS tape.

Sounds like an interesting idea, he gets the speed lock of the DD plus the high mass and resonance sinking of the Teres platter, plinth and bearing.

He might get better results with the drive tape we developed. Compared with VHS tape it's less slippery, less elastic and much more resistant to stretching or misforming in any direction. Far better performeer than VHS tape on our TT. Check out this thread.

1) speed accuracy to the point where its musically relevant has been pretty much solved in any TT costing over $300
2) the average stylus pressure is 1.5 gm. The drag of this on a rotating platter assembly of 2000 gms is negligible; the mass equivalent of a tricycle towed behind a truck
3) vibration isolation/damping is what counts...horizontal vibration in the plane of the stylus vibration will suck transients, detail and bass out of your playback

Direct drives are very difficult to isolate vs belt drives