SE Custom 2408 Tone pots 2022- What are they?

[Veetwin]

Hi everyone, I have a tone pot that keeps not working. If you hit it with a cleaner it works for awhile.

I would like to change it to something better. Any suggestions please

They are 500k pots - however what type are the? Alpha? Metric? etc etc

Please help,
Regards,
Steve