When you start repairing guitars and working on different types of electronics, you can be unfamiliar with the common terms used in guitar building and guitar repair. Most likely the repairman thought you to understand that you should use 250K pots and not “two 50K” pots. Most passive guitars use audio taper potentiometers with values of 250K (Fenders), 500K (Gibson) or 1Meg (misc. guitars).

If using a 250K (K= Thousand) and a 1 Meg. (Meg. = Million) the 1 Meg. will let more high end pass. Using the 50K Potentiometer will drastically cut your high end.

Don’t feel silly to ask questions and write things down or have your repairman help you. There are several good repair books available and if you’re looking for guitar tools and parts try contacting Stewart-McDonald (insert address) and many other fine advertisers in Vintage Guitar Magazine.