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In Reply to: Re: Technics SL-QD22 … WOW! posted by joeychitwood on October 29, 2004 at 05:22:24:
Hi Joey,You mentioned one of the tweaks you made was putting "heat shrink on the tonearm." I've heard this tweak mentioned a few times on the board.
What is it?
Follow Ups:
The tonearm on my Technics SL-3200 is made of thin metal, (I believe it is aluminum,) and to eliminate or at least decrease tonearm resonance, I put a piece of heat shrink over the arm from the headshell screw to the pivot and hit it lightly with a torch. The wrap dampens the arm vibrations. I've seen people do the same with black plastic electrician's tape, but I think the heat shrink looks better.
Thanks for the info.Did you have to change your VTF setting after this tweak? Did it make setting VTF more difficult? On my Technics, there is not as much flexibility for VTF adjustments as there is with higher end 'tables.
Also, with a tweak that would seem irreversible, were you worried that it might deaden the sound too much, then you'd be stuck with it?
I reset the VTF with a Shure scale after adding the heat shrink. I had no problem hitting the target VTF. If you are having trouble with VTF adjustments, make sure that the bearing adjustment screws on the pivot are tightened just enough to prevent free play, but not so much that they restrict movement and true VTF readings. (I made this mistake once.)If you don't like the sound after the heat shrink is placed, you can carefully cut it off with a razor blade/utility blade. It does not bind to the arm and will just peel away.
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