VPI SDS capacitor question

This is true. I have a Classic and got an SDS a couple of months go. VPI said there's a capacitor inside the Classic that "fools" the SDS into not "seeing" the Classic properly (I can't explain the technicals of that). Basically it causes the SDS not to give the motor enough juice to start up. I usually had to give the platter a little push on SDS startup because of this.

VPI, or your dealer, can send you the cap. It's really easy to swap, and then the SDS will work properly.

You can get them at any parts supply for a buck or so; I forget the value, it should be one here in the archives. I replaced it on the only Classic I have sold so far as the standard cap was giving a loud pop when turned on; no SDS was involved. Very easy to replace; just took me a few minutes and I have slowed down a lot the last few years.

This is the message I got from Mike at VPI about the cap:

"Your Classic has a 600 RPM motor that  uses a .5 microfarad capacitor to start, when using the SDS you really need to change that cap to a .68 otherwise the SDS is fooled into thinking there is nothing there."

To the OP - you wrote that you have the Classic and SDS already. Do you not have that startup issue (where sometimes the motor doesn't run at the higher initial voltage long enough to get the platter moving before it drops to the lower voltage)?