Jeff Seal

Ch.switchers are a PITA, but still feasible.... JS

Hey James, long time no see bud! Hope all is well with you! Jeff Seal

Originally posted by DeathMonkey I have heard from people that know quite a bit more than I that as long as the caps are used regularly, they can maintain their effectiveness for indefinite amounts of time. But if the amp sits for too long, they dry out and become faulty. So an amp from the 50's that has been used regularly could feasibly have working caps, whereas a newer amp could sit for ten years and have to have all the caps replaced. I don't know for sure, I know caps in a lot of old amps are replaced as a precaution - my Major sat in a warehouse for 8 or so years and needed new caps, but my old Bandmaster was regularly used and still had its original caps. Perhaps one of our resident amp gurus can clear this up. True enough, the oil filled caps used as Filter caps, bias supply and cathode bypass caps will dry up. But the older HV "decoupling caps" and tone stack caps rarely fail because they are not oil filled, so it's not particularly common to replace them. JS

Originally posted by SKYNETRP YEP! And they are supposed to be replaced every 10 years. The very first thing that you do to a vintage Marshall is replace all the caps ASAP, and NOT with Orange Drops either!! I gotta disagree with you there, I rarely replace the caps you're referring to unless they're passing DC. I get 50's Fender's that leave the shop with most of the coupling, tone stack caps still original.... Anyone else have thoughts, maybe I'm wrong here.. Jeff Seal

Originally posted by Dave Owens jeff..is this your work.???. (if it is..its real nice !!! )... Why yes!...yes it is:) the 2204 was shipped here from Arkansas and was basically retrofitted with a new board, keeping the original PCB,pots and jacks all intact with no changes made to it.. original... This way the "vintage value" is preserved. Same with most of the amps I mod. JS

I'll give it a go!...... The last 2204 I modded.... or one of my customers 4210's... I'm more concerned with how they sound than how they look, but to each his own. JS