I bought an old peavy valveking for somewhere around 100 bucks from guitar center a couple months back, and did the "mesa mod" to help out the distortion channel a bit. It worked great for a while but now theres some loud crackling. Its very interesting what affects it. Pulling v1 or any of the subsequent preamp tubes kills it. But the clean volume control doesn't change it at all. The distortion channel's gain and volume does, however. The crackling is intermittent, and chopsticking reveals nothing. I dont have the amp on me right now, so i cant get any gutshots, but im wondering if anyone has some suggestions. I had a similar problem with my first build and it turned out to be the rectifier diodes, maybe its that again?
Thanks,
Josh
Peavy Valveking (old model) crackling
Moderators: pompeiisneaks, Colossal
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JoshBernstein
- Posts: 289
- Joined: Tue Jan 27, 2015 1:31 am
- Location: Key Largo, FL USA
Peavy Valveking (old model) crackling
Not really
Re: Peavy Valveking (old model) crackling
Any Carbon comps in there? Can you bake them out for a few hours and see if it cleans up?
Tube junkie that aspires to become a tri-state bidirectional buss driver.
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Stevem
- Posts: 5144
- Joined: Fri Jan 24, 2014 3:01 pm
- Location: 1/3rd the way out one of the arms of the Milkyway.
Y
You can likely fix it and save yourself from having to get into it again down the road by just shot Gunning it and changing out all the plate load resistors for Metal film type, and if the leads will fit , step up to 1 watt types![/code]
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!