setting azimuth

The fozgometer works well and very easy to use

You'd need a notch filter. Otherwise, background groove noise will swamp the test tone and make the readings highly unreliable. However, IME doing it this way is a waste of time.

I rough in azimuth by eye (make the stylus riding in a the groove appear perfectly vertical), then fine tune by listening. It's easy once you know what to listen for and it trains your ears. Fussing with voltmeters (I've done it) and other gadgets only trains your obsessiveness. :-)

You can't just use a voltmeter. Don't ask me the technical details, as they are beyond me, but I believe you need some sort of filter. I use a Wally analog shop.

Agree with Doug; do the rough in by eye then listen. I started with a test record to dial it in more precisely then did some critical listening of stuff I know well for the final touch. I've also heard the Fozgometer works well, but I can't see how it would be nearly as much fun. Good luck & happy listening!

I'm not sure I have such a fine tuned ear to get it dialed in and I'm afraid to spend all the money on Wally's shop and then wait a year to get it. The fozgometer might be a good option but I've heard it's not super exact. I might try to listen in, what would I be listening for? Also are there any filters other than Wallys that do the same thing? I'd like to do it mathematically and just be done with it.