FOLLOW UP FROM OP ——-
Bought a Marshall 8100 head for $450 kinda local from “some dude” - i asked for a vid of it working, which he provided.
I should have been suspicious of the 10 second length of the clip and the fact that he obviously didnt know how to play guitar….
Got it home after an hour drive each way. Yeah its broke…. Shit….
Massive white noise when no cable in the input jack; OD2 isnt that gainy; just a TON of non-gain hissssssssssssss at 80% of playjng volume on both channels in both od modes. Unusable.
Changed out the stock 12ax7 w marshall branding on it - its a 1992 amp btw…. With an ehx tube. It reduced a smidge of the hiss but still not usuable.
Based on a repair video on YT, its likely the TL072 opamp on position IC1 (input stage).
Contacted seller - said he didnt think it was broken, and that its a 30 year old amp, i should expect some maintenance. Oh also, “plus i need the money, its why im selling my gear”. What a loser. Luckily both my wife and i make nice incomes but if he did this to someone that had to save up for a $450… thats just not right!!
Well. Bought some TL072 opamps and a capacitor discharger from amazon - its about time i started to learn how to work on amps. Maybe in a few days ill have it fixed!! Or.. ill be calling my local tech to help lol
Guess ill try to make some lemonade out of these solid state lemons….
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