On Oct 29, 2024, at 1:54 PM, Dean Carriveau via Jukebox-list jukebox-list@lists.netlojix.com wrote:
Hi all, I've been making repairs to my Pickering M100A mono blackhead cartridge and am wondering what the purpose of the "damping "grease inside of the shell is. The original grease had become nearly hard and was removed during repairs. What will happen if I don't replace it with a thick grease, such as dialectric grease and what is the purpose of the grease in the first place?
I’ve never seen a black head cartridge in person, but if memory serves me correctly it is possible that should be rubber and not grease.
With a record playing on the "B" side and entering the end of record runout it will often skip back a bit into the program rather than continue on and reject the record. I can override the issue by increasing the tension on the B side tension spring but would rather understand why the tonearm skates back on one side and not the other.
Check the routing of the tonearm wire and check for anything that might interfere with the tonearm or tonearm wire when playing the B side.
Carl Haines