Hoffman Amplifiers Tube Amplifier Forum
Other Stuff => Solid State => Topic started by: Platefire on January 29, 2020, 08:18:29 pm
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A friend of mine is wanting to mail the chassis/electronics to me to fix. After looking at the pictures he sent, I thought for sure this amp has been in a flood. He said no. The board looks bad and appears to have corrosion on some of the electronics. So I am attaching pictures hoping you with experience with old style fiber board SS amps might evaluate rather this thing might be repaired. I don't want to get into rebuilding it, just repair it, if it's possible in existing condition.
I have no experience trouble shooting ol SS amps, so considering my lack of experience on these and the looks of the board---I would like to get a second, third of forth opinion before I tell him to send it.
This is what he said about the amp:
"It's Loud!!! It worked a first, but volume was scratchy. I shot some electronics cleaner in there and now it's just a loud buzz"
OK here are the pictures. It appears to be the type of board that would have to be pulled to solder it on the back side. I really don't want to try to pull that flaky board. Platefire
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NO!
Run away.
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Ha Ha Ha :l2: They say first instinct is usually always right
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+1 No , me, I love a challenge :icon_biggrin:
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Thanks! The survey is fun but I would like to have a brief explanation on the reason for your vote------like, I agree the condition of the board looks deteriated beyond accepting normal repairs because I want to provide a reasonable explanation to my Friend for my reasons for declining or maybe you think my original impression is not warranted?
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I have no experience trouble shooting ol SS amps, so considering my lack of experience on these and the looks of the board
Tell him that.
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THANKS!
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aside;
couple years back I was looking for bench work with a mom N pop, they had a good tube tech, I asked about the SS junk he chuckled n said it's all in the dumpster out back :laugh:
another place, all they had was SS junk but no money, I bartered for a place to plug in my redneck camper n access to a head. got 12 crate types up n sellable in a couple days, told him to put the rest in the dumpster and ONLY take in tube amps :icon_biggrin:
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I could count the number of SS amps I've worked on one and a half hands :laugh: . On a couple I lucked up and found the problem.As I remember SS usually run on lower voltages than tube and the transistors replace the tubes as drivers/amplifiers. I really wouldn't mind working on the Vox if the board didn't look so bad. It looks like it's ready to disintegrate. My Friend Randy's uncle found in in a Sunday School room in an old Church building be bought and gave it to him.
Also another friend gave me 4 or 5 old Peavey PA Heads. I fooled around with them and tried to get some going but never made any progress. One was a 4 channel with reverb that worked fine. Didn't have to do anything to it. I bought two small Kustom 10" PA cabs to go with it. I still use it in my jam room for vocals and JamMan Tracks. The rest I eventually took to the dump. So goes my SS experience :BangHead:
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Can I vote twice? :l2:
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I wonder what your vote will be this time :think1: