This one came in for a set of valves and a check over.  New JJs in the output and Tung Sols for the preamp, bias all OK and working fine except for random crackles.

PCB style amps are a pain when they start this, can be tracking on the boards from dust and/or moisture, dry joints or components that are noisy.  An almost impossible fix.

Resoldered a fair bit of the pcb that holds the valves and it quietened down dramatically, but only time will tell if it does the job..........................

Well an unusual repair.  An old made in California Acoustic head that the muso wants to use as a bass amp.  Only problem is the equalizer isn't working on two of the "bands" both at the bass end of course.

When I opened it up it was clear someone had removed some of the parts from the equalizer pcb.  So rigged up some new coils and put them into servi