Vintage Rheem Key Bass with Internal Mod

Note: links to listings are affiliate links for which the site may be compensated.

via this auction - learn how to sell on eBay here

"It works great but it's out of tune, it's been worked on, somebody modded it (see pic) That pot changes the tone (i guess for tuning it?) i have the power cord Perfect for a project or replacement"

Pics of the inside below.