No, I don't usually work on amps except when it's just a minor job such as replacing a pot or jack socket. Which happened to be the case with this Marshall MG100HDFX 100W head. The Alpha C5K master volume pot was really wonky and kept making all sorts of weird hissing and modulated alienoid noises even after normal servicing. So it was definitely time to put it out to pasture. Had a hard time finding a replacement, I tell you. In the end, I managed to find one advertised on Reverb by an electronics store in Spain. Yes, made in Taiwan, but I had to get it all the way from Spain. The new pot's splined shaft head was a bit longer than that of the original one, but it still fit the knob ok. Thank goodness the weird hissing and noises disappeared after this minor surgery; and the amp was working as it should again.
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