I've been asked on numerous occasions what I think of the Bill M. mods for Fender Blues Junior Amps. I could never answer that question because I had not ever heard any of his modded amps. I finally decided to get some mods done and less than $200 later, it's like having a brand new amp. The differences are very, very noticeable. Much more bass, a lot more brightness, and far more usable tone controls with more available gain.
Cheaper than a set of great pickups, these mods are a slam dunk in my opinion. Details about what I had done are below the video.
- Basic mods
- Heyboer TO20 output transformer
- Presence control
- Cathode follower
- Switchcraft input jack
- Preamp revoicing