Marshall JCM900 4100 w/5881’s volume drop

[evil79]

Did work on a 4100 JCM900 w/5881’s. Cap job, replaced tubes, replaced a few burnt resistors, resoldered almost all solder joints, cleaned jacks and...

[Tom Bridges]

Hi, ever since I bought my AC30C2 I've had a variety of issues regarding noises, tubes and furthermore. Now I'm having a volume drop, like the amp is running...

[torcamaniac]

Hi guys,
I'm new to this forum and I hope some of you could help me with an issue on my modded JTM 60.
First I've done all the mods posted by...

[wole]

Hi everyone, it's my first time posting here and also the first time trying to repair an amp, so please excuse me if my questions are trivial

...

[gloriousfrance]

Hi all, I'm new to the forum and fear that my question will get me cast out of here just as quickly as I joined. I'm not sure where else to turn to so if...

[wcameron2005]

Hi

I'm pretty inexperienced when it comes to valve amps, so please bear with me on this.

I own a Custom Sound Cube 30, an all-valve...

[misterc57]

Just bought JCM900 Dual Reverb 100 watt head a couple days ago.

After playing for a while, the volume drops, sometimes fades to nothing, eventually...

[ginochan]

hi. i have an old fender ultra chorus that worked well until yesterday when all of a sudden, the output of the clean channel became very very low. i know...

[asatbluesboy]

A few years ago, I've had my tech build me a 5F6A with Alpha pots, Sprague caps, the works, down to spec, except for a solid-state rectifier and a somewhat...