Sloppy PST Tuning Ring?

[Merlin66]

Not a mod, but a "maintenance" issue...
If your tuning ring is sloppy then probably the two small O rings which should provide stability have worn....
You'll see them when the rubber knurled ring/outer ring (and the small screw) is removed.
These, according to my measures are 1.7mm diameter x 51mm bore...an oddball size!
The O ring locating groove is 1.6mm deep x 1.75mm wide.
If anyone finds a suitable supplier for these O rings, please post details for others..

[swisswalter]

Hi Ken

we will look out for them

[peter drew]

If it's the outside diameter of the "O" ring that is worn, might it not be possible to pack out the groove to expand the original ring?

[Merlin66]

Yes, a few strips of masking tape at the bottom of the locating groove might do the trick....It would be much better, however, to find a supplier....