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Some measure stylus angle with microscopes... but the quick and dirty is simple. Put the stylus on a record and put a notecard behind the tonearm. Look at the lines on the notecard and compare to the tonearm. If they are parallel, you're all set. If not, adjust accordingly, raising or lowering the tonearm or shimming the cartridge.
I think a picture would be worth a few thousand words here, but if I am understanding you right, the question is not how to set tracking angle of arm (yet) as much as how to get the arm sitting on the same plane as the plinth? ...
Thanks, but neither of you unfortunately gave me any new info. What I really want to know is what is the standard differential between armboard height and platter height. I can't imagine there is a lot of variation in this, but the question seems to be answered no-where that I can find. If there were a lot of variation then most arms wouldn't work on most different tables. However, I had to shim my Rega over 1" and I still won't clear. This isn't simple VTA adjustment or minor adjustment, this is big adjustment.My arm, bearing and platter were all factory from a 260 Table, but my plinth is slate, but affects none of this. Hence my confusion.
So basically your platter is taller than standard for that turntable, find out from who made the platter the difference and i guess your armboard need to be that much higher than standard for that turntable.
In this case the platter and the armboard were standard for the 260, I just changed the plinth out (same dimensions, different material, i.e. slate).
..... Side question: would a Denon DL103R work well on the Jelco arm? I was thinking of grabbing one, don't want to spend a lot of money to get things running. My Dynavector DH20X is to be found right now and my phono takes one MM/HOMC and one LOMC simultaneously.
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