[morzh]

Tim,


No, they were not NOS. That is, in a way....they are PRB belts. Not Philips.

And changing it did improve things: the belt was slipping, and it is no longer.
Same thing happened to my old Kenwood CD changer, which along with the whole system was given to my son. No amount of lube helped; but as soon as I bought a PRB replacement, it just worked, and still does, 2 years after.

Now, I am not sure the lube will help, but a 30-year-old machine might need one anyway, so why not start from what is warranted, and then start looking at the rest? Same as with the radios: why troubleshoot the whole set without checking the tubes and replacing the know-to-fail caps, right?

My methodology of troubleshooting is: no spending time on the questions that do not even have to be asked when the maintenance and low hanging fruit problem weeding out have been performed. Works for me every single time.

So, this weekend (the lube had come 2 days before I expected, Tuesday) I will attempt the lube and assembly, and then we'll see.