by Radiokub »
Sat Jan 10, 2009 7:26 am
Thats a Webcor changer like i thought you might have had and posted a reference picture of when chatting with you in your other post. The stylus pressure spring is the bottom one shown in the tonearm picture. I believe theres a nut you have to turn to increase (lighter) or decrease (heavier) tension. The upper spring shown is connected to the tonearm set down adjustment.
Remember that you still have to replace the idler or have it professionally rebuilt to fix the noise problem along with a good de-grease and repack of your platter bearing assembly. Did you try putting two records on and see if the tonearm still skated across the record? If it dont skate with two or more records then the tonearm height might need to be adjusted also. From what i see in your pictures you have the correct cartridge for this tonearm (sonotone with J shape needle) so unless someone tampered with it, the stylus pressure should be correct. If the suspension pad in the cartridge is shot, that can cause skate as the cartridge body will be sitting on the record not letting the needle track. You can check this by sitting the tonearm on a record with the power turned off. If the needle goes up into the body and the body sits on the record then the suspension pad is shot causing skate. That means the cartridge is worn out. NOS sonotones are easy to get and play well on this system and would be original to the design. But if your set on using the Shure cartridge, it should be about the same weight as the sonotone so you shouldnt have to adjust the pressure spring unless its been tampered with. The shure will require a pre-amp to feed your stereo.
-Tony