VPI Classic Azimuth Seems to Change -- Normal??

Tried to make it as straight as possible, but there is always some inherent twist. Very curious. Theoretically, there is nothing that should cause the wand to twist on the uni-pivot point, other than the wire. I'll try calling Mike at VPI and see what he thinks.

Thanks guys. This may be heretical -- but I am not using the VPI AS set up. I was using the VPI suggested twisted wire - rough justice approach. That is until I relaxed the wire because of the torque issue.

Actusreus, I use a tiny bubble level that is made for cartridge set ups. It's probably 45 years old. Short of using an oscilliscope, it's probably the most accurate way to check azimuth.

Swanny, I'm not sure I understand your suggestion. If I am not using the AS device, is the suggestion relevent?

I sent Mike an e mail. I'm not sure he'll be around. The pre-recorded phone message said something to the effect that Mike and others may be at RMAF.

Thanks again.

Actureus, I never used the VPI AS set-up. Instead, I may have lightly twisted the wire. As stated above, it could be "wire/insulation" memory. Kinda makes sense. At this point, I think there's no twist in the wire.

In response to the Q about how I check azimuth -- I have a tiny bubble level which I place length-wise accross the top of the head shell. In other words, the bubble level is length-wise perpendicular to the front of the head shell, directly over the midpoint of the cartridge. I also check the azimuth in 3 spots: inner, middle and outer tracks.

As I said, the middle and inner tracks are perfect; it's the inner track that torques to one side. I don't remember which way -- clockwise or counter-clockwise.

I sent a message to Mike at VPI. He said that he would check into the anomolie when he gets back from RMAF. He quipped that I was being just a bit OCD, but then added, he would be too. LOL

I'll report back when I hear from Mike.

P.S. -- next TT will be fixed gimbal.

Actusreus, yes . . . I tested the azimuth on several records. Same results. The answer to whether I can hear a difference: not really. Doesn't say much for my auditory acuity I suppose. I'm not going to obsess about this, but I am curious what Mike comes back with.

As I said before in other threads, I appreciate the build quality of VPI turntables. However, I think the unstabilized nature of the uni-pivot can present issues.

Ok . .. here's where I stand. Mike sent me a new heavy-weight azimuth ring with large extension counterweights. I also went back to using the VPI azimuth checking rod. I think I am ok now. In any case, I'm not obsessing about it anymore. To my untrained ears, cross-talk doesn't seem to be a problem. Imaging and depth of field is VG. So now I just listen and enjoy. This hobby can make one nuts!!