My volume pot needs to be replaced for my p-bass preamp. I'm not sure what value it needs to be.

I found these that I think might work, a 50k with a metal shaft and 100k with plastic shaft.

https://www.mouser.com/ProductDetail/Bourns/91A1A-B24-D20L?qs=gOdenYySUw6piiaJW3vSzw%3D%3D

https://www.mouser.com/ProductDetail/Bourns/91A1A-G24-D18L?qs=gZXFycFWdAMUpXBDaaQ0gw%3D%3D

The volume pot is 10K audio taper. You can purchase replacements from us by phone or email - just email me mica@alembicguitars.net

Have you owned these since 1991?

Email sent - I picked them up 2nd hand a few years ago. In case you're not familiar with the following issues, I had used the now non-functional service form on the website and emailed help@alembicguitars.net, but got no replies. In case help@alembicguitars.net is still not functional, it should probably be removed from http://www.alembicguitars.net/family/contact.html .