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In Reply to: RE: Aha! A Breakthough... posted by Tone! on October 15, 2014 at 19:19:30
try using a penetrating oil and let it soak in for a few minutes / hours. Most likely the metal in the sled and the metal in the headshell (two different alloys)have some sort of negative interaction or just some oxidation.
If you have some WD-40, squirt some of that into the sled pocket. Then be prepared to wipe the headshell clean after you've got it free.
-Steve
PS: avoid using force on mechanical objects not fully understood. That way you don't break stuff.
Follow Ups:
Roger that! (Not literally...)
I will be sure to report on progress.
As an aside, do you think that a Technics SL1200 tonearm Head-shell would plug into the TP16 arm? The joint looks very similar... NOT that I am going to break anything on the THORENS... Just wondering?
"As an aside, do you think that a Technics SL1200 tonearm Head-shell would plug into the TP16 arm? The joint looks very similar... NOT that I am going to break anything on the THORENS... Just wondering?"
No. Not interchangeable. The Thorens Tp16 is a straight arm tube with the offset angle built into the headshell itself. The Technics arm has the offset angle bent into the arm tube. Further, the coupler joints are not compatible. The Thorens coupler is pretty much unique to itself and will not interchange with any other brand.
-Steve
Steve
Thanks for your great advice...
After 5-days of bathing in CRC, the THORENS TP16 head-shell mounting plate finally began to move inside its cage. Once mobile, it was easy to reset the cartridge to the GURU settings that have worked well for me on my LP12/ITTOK/SHELTER 501 MkII.
The SHURE M91ED cartridge I have fitted sounds pretty good up top and upper mids, but seems to be a bit MIA in the lower mid-bass and bass.
With my IFI iPhono I have numerous different settings - particularly as far as load is concerned. The M91ED manual states 400-500pfd for best results, but I can't hear any difference between them at all - even with just 50pfd load.
Am I expecting too much from this front end?
Maybe the GURU settings are no good for SHURE cartridges?
Good news on the "sled' freeing up. That's about par for the course on the TP60 headshell. Btw, that headshell is made out of magnesium. For whatever that might be worth.
I suspect the TP16 arm will be a bit heavy for the m91 ED. But if its sounding good, then that is good.
make sure that the coupler joint betwixt headshell and armtube is tight. That detail can make a difference you might hear.
alignment theorum:
I'd avoid the "guru" protractor and go with a baerwald alignment if at all possible. a two point protractor with nulls at 66 and 121mm will be Baerwald. (also known as Loefgren A) Fwiw, the factory overhang jig will align per Stevenson. Also one that works fine on this TT. So....if you don't have that clear plastic overhang jig that came with the TT when new, find a paper Stevenson based protractor.
pic: Factory TD160C align jig
Most owners managed to lose both the jig and those plastic spacers in the pic that was used to set vta. One way to do it anyway.
-Steve
No breakages permissible - under any circumstances!
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