That's what I though, but thanks for the confirmation, Ron.

Hi all, long time no post. I have a Rock-Ola 488 that I need to replace the Hit Tracker battery in. Parts catalogs calls for 3v lithium part no. 52726. Can I replace this with cr2032 (button type) or a cr123a (camera battery) which I have a wealth of? Is there a better alternative to the EOM battery...

That's interesting. Do you think hum is caused by EMI or a density or conductivity property between the different rubbers? Perhaps a less dense grommet would transmit vibrations to the cartridge cause hum.

Beats me. I'm just trying to learn. Let's hear some theories on this.

The original grommets in the 488 were white, aged yellow. The ones in the link I provided are black. I considered placing an extra washer or two between the grommet and the C-clip to compensate, because I'm kind of impatient like that when I have a new toy, but had overcome my enthusiasm and waited ...

Turns out it was the .5 amp slow blow fuse on the mechanism power board. I wrongly assumed that the entire mech power board would be inoperable if that fuse was blown. Quick and easy (and cheap) fix. My 488 started running too slow after I got it up and going. The TT motor grommets had compressed ca...

I just acquired a Rock-ola 488. Everything seems to function properly up to sequence 14. The gripper bow transfers the record almost to the turntable, but the gripper stops just short . By "cycling and observing" I've seen that the gripper's travel stops when microswitch 2 dips into the fi...