grafxdesin said:
I believe the stylus is cooked, but I could be wrong, below is a picture. I have not tried to play it yet.
Thinwall aluminum tubes usually kink if they're seriously bent, and I don't see a kink. In fact, I don't see much if any dirt or corrosion either. Both encouraging signs. Since playing friction will pull a point-to-the-side cantilever straight-- usually-- I'd give it a try on a record you use for testing or something easily replaced if the absolute worst happens. If you have a 30x or so hand magnifier you can check to make sure the diamond is still there and whether it's clean or not.
I have the feeling it'll be fine. If somehow the rubber ring that holds the cantilever on target has taken a set over the years because of the way it was packed away (or for some other mysterious reason), we're working on a fix for that.
Tracking force should be 1.25g to 1.5g max [not quite: see post 21, below]. Set the antiskate to a gram (or whatever setting best makes the cantilever point straight ahead on a moving record); that's close enough for testing.
grafxdesin said:
How do you use a digital ohmmeter and measure the left and right channels? I have one but have no idea.
The ADC bodies have a Left-Signal (LS) and Left-Ground (LG), and a corresponding Right-Signal (RS) and Right-Ground (RG) arrangement. You'll see the RS, RG, LS, LG terminals labeled on the back of the cartridge.
Take the stylus off the cartridge. Fewer accidents that way.
Set your meter to the nearest click to 2k ohms (2,000 ohms). 1k is good enough if that's what you have. Touch the probes to one another and you should get a reading of 0.00 ohms, or close to it. Now touch one probe (doesn't matter which) to the RS terminal post and the other probe to the RG post. You should get a steady reading of anywhere from about 425 ohms, give or take about 20, all the way up to about 825 ohms.
I'm hoping for your sake that the body(s) will measure either 625 or 825, because those bodies are by far the easiest to get styli for, assuming you want a cartridge whose treble is not slightly elevated. This is not an exact science; you can be close and still get good sound, but some people are very sensitive to hearing more treble than they expect, so I'm conservative in my recommendations.
Then check the left channel, of course. The channels should match within about 30 ohms. Measure all three ADC bodies and pick the one whose channels match best, but don't throw the other bodies or styli away.