Marshall Valvestate Head Repair

A new customer brought this by not too long ago. I don't usually work on solid state electronics but I told him I would try my best. Then, I immediately found the issue! I guess I shouldn't sell myself short. In any case, I was able to fix the amp and the customer seemed happy with how it turned out!
If you are in the northern IL or southern WI areas feel free to contact me for a quote on guitar or amplifier repair. You can find me on all social media platforms or email me at [e-mail]

[@Theintruder100]

Would uou recomend putting some potting around the caps so they dont move under vibration.

[@MrBlackHimself]

I HAVE 0NE 0F THESE, THE 0D2 CHANNEL CRUSHES F0R TIGHT SATURATED M0DERN METAL, STATIC-X AND PR0NG USED THESE...

[@ballingeramplification1872]

Nice! I have a small practice amp
Combo version of the Valvestate. I can definitely see these amps pulling of that crazy high gain sound.

[@ChrisHopkinsBass]

I used to have that model….the tube is being used as a diode. You can even remove it from the circuit and the tone doesn’t change

[@ballingeramplification1872]

They also have notorious issues with bad solder joints cracking. Same as all the JCM 800-900 amps. My little practice one needed to be fixed so many times eventually I just changed a bunch of stuff so it would stop happening.
Like using wired pots rather than the ones that mount directly to PCB.

[@ballingeramplification1872]

If you have twitter or instagram hit me up in my DMs. I actually have a good story about this one but I don’t wanna share it publicly.
@Mikeballingerx on twitter
Actionmike2077 or Ballingeramplification for Instagram

[@jasondorsey7110]

You may be thinking about the earlier 8100 valvestate which the vs100 replaced...the tube in the 8100 only works on the od channel, whereas the tube even works on the clean channel on these vs100's...I replaced the stock ecc83 in mine with an older groove tubes 7025 and saw a big improvement in both tone and background noise

[@ballingeramplification1872]

Yup that’s pretty much what it’s doing. Although I never tried to take out the tube and play the amp. I own one of these as well.
It’s the combo version of this. I use it as a practice amp now. I did notice that when I changed the tube in mine it didn’t sound any different.
In my view, these are just normal solid state amps with a gimmick.