VPI motor - upgrade to 300 rpm?

Wow, made it with the nylon string! Turns out I had to use more tension, and a double knot (with the knot at the outside of the span). The nylon thread/string creates very interesting sonic changes, the whole thing seem to be clearer the bass more distinct. So thanks a lot for advice, and I will follow up on the other suggestions too.

Here is the link to the motor you need for the VPI. Order it over the web and they will expedite. Should ship in 14 days. $84 shipped.

http://www.hurst-motors.com/papbdirectdrive.html

I get quite correct 33 rpm (a tiny bit slow) by setting the SDS to 66.00 hz, the top value, and then position the player (or the Samas, but that is harder to do) so that the nylon thread gets a good amount of stretch. The thread is 1 mm thick. For 45 rpm, I get OK speed at 90.00 hz (note, I have 230volts/50hz electricity), although I hear some hum from the motor.

Storyboy, I notice you use a rubber belt rather than a thread in your flywheel system, is this because it sounds better in that configuration? Could you describe the change the flywheel makes to the sound? Is it possible to order the flywheel as a separate part?

Podolaw, thanks, I will check out.

Mike at VPI writes that changing capacitors will make a difference to motor performance:
"The 600 RPm motor should work perfectly when you get the capacitor right for your countries voltage and frequency, it is a critical item and if you are willing to play with different values you can fine tune the motor for lowest noise and running smoothness.
Begin with .22 microfarads and work your way down in value till the motor stops running."
Have anyone tried?

O_holter, I did this with a new Hurst motor for my AR table. Not a VPI but it does use a Hurst. I did indeed get lower noise and smoother running by experimenting with lower cap values. But there is a price to pay. If you go too low you run the risk of having the motor randomly start rotating in the wrong direction on power up. You'll have to give up a bit of the lowest noise performance you can get (by upping the cap value from that point) to get reliable start up direction.

By a variety of Sprague "Orange Drop" caps up to just below .22uF and they each one out until you get the best compromise (.047, .1, and .15 are available). Use the 716P series.