Mojotronix

I brought a noisy Fender Pro Junior III to Stan in order to help me quiet the amp down and install an adjustable bias trim pot. We also went through my stash of NOS tubes to find the quietest and most closely matched sets (using Stan’s high quality tube tester and our ears). Stan also re-​laced the internal wiring of the Pro Jr. to help minimize the noise issues.
Stan did the repair on the fly since I’d driven a fair distance to get there. What amp tech does that? None in my experience. Even on simple repairs/​mods like these.

Got an amp you need repaired or hot rodded? Stan is the guy! He knows amps forwards and backwards and TONE and is reasonable. He did a great job installing a voltage regulator in my Marshall. Its now totally off the hook! Thanks Stan!

Stan at Mojotronix is a real find. I took my Voodoo modified Peavey 5150 II to him to determine the cause of a volume swell that reared it’s ugly head after leaving the amp on for a few minutes. One thing that I really appreciate about Stan is that he is clear about the $ 50 bench fee up-​front. He also will come down his many stairs to the street parking in front of his house, and carry your amp up to the shop for you. I left the amp with him from 1.5 to 2 weeks and he couldn’t get it to misbehave. The problem, as it turns out, was a cable ribbon cable connector that Voodoo never fully re-​connected! Stan noticed it early on in the trouble-​shooting process and just plugged it in. The amp has worked perfectly ever since. When I picked up the amp, Stan told me that the $ 50 bench fee could be applied to any future work that I may need done. What a guy!!! I will be taking all of my guitar amplifier to Stan at Mojotronix!

I brought my Ampeg SVT-​Classic to Mojotronix for repair when it had a problem with randomly tripping itself into standby mode. Stan let me know ahead of time what he thought the problem might be, and about the approach he was taking to my repair. Upon picking up the unit he told me all about what he encountered during the repair, and the steps he took to fix it.
This was my first experience with Stan, and he’s earned my repeat business. I’ll be going back to Mojotronix for my amp repair needs in the future without a doubt. Very reasonably priced service, quick turnaround time, and solid reliability. Use Mojotronix, you won’t regret it!

Stan did a great job getting my old twin reverb back into great sounding shape. He obviously love the work he does and is very good at it.

Stan did an excellent job on my Tone King. He really went above and beyond to check and double check that the problem wouldn’t reproduce itself. He ran it for a long time, cleaned it thoroughly, and as luck would have it even delivered it to me. I can’t recommend him enough, especially after dealing with nearly every other amp repair in the area.

Stan is a great «Amp Guy» who knows TONE… Stan did an amazing job on my 1966 Fender Twin Reverb (in addition to other work). I simply would not trust that baby to anyone but the best. Stan exceeded my expectations and really saved that amp. Great, quick service at reasonable prices. What more could you ask for? Mojotronix Rocks!

My son’s Blues Junior tube amp was dying a slow death, but Stan got it up and rockin’ before we could finish our lunch. And the cost was less than half of what we were being quoted elsewhere in the Bay Area. Hope that doesn’t cause it to go up, but it is worth the extra drive time.

I’ve had Stan work on a few of my amps over the years and he’s always been great. Recently I had him rewire a Bassman 50 head (circa 1972 or 1973) and install a Mercury Magnetics output transform. He drilled no holes so if I want to return the amp back to stock, it will be perfect. I also had him install a master voume, again with no drilling. This head now screams. For less than a third of a boutique amp I’ve got a handwired head that is creamy, loud, pure and loaded with sustain. To top it off, he worked extremely fast so I could have the rig for a gig. Do yourself a favor call Stan the next time you need amp upgrades or repair.

Stan had the dead JCM 800 in and out in a week at $ 140. That includes a new JJ 12AX7, 3 caps and some new knobs. A really nice guy, to boot. The 800 screams now, back to it’s former glory. Thanks, again Stan.