Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: tubesornothing on February 10, 2020, 03:15:19 pm
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Howdy gang... it has been a while!
I am repairing an old juke box amp for my brother. The elec caps are old so I am going to replace them. By matter of course should I replace all caps? coupling caps, etc.
thanks!
ToN
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got schematic, pretty comfortable inside tube amp?
me, I always like to just plug 'r in and go from there :icon_biggrin:
if nothing flames out, I get what data I can then build a game-plan from that
to your question, depends;
vintage, keeping it original, then No
hacked a million times, rebuild it new n someones kids can fix it when they are your age :icon_biggrin:
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Probably, especially the old tubular wax coated paper caps. Some caps can stay. The domino caps are usually OK. Show us some pics. I'll show you the ones I would replace. Are you restoring the jukebox or just gonna repurpose the amp?
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Hey Sluckey - long time.
Here are some pics of the amp and the tormat unit (for song selection). We are rebuilding the jukebox, so not re-purposing it. Has some noise issues - maybe some Dc on the pots. A few scrathy post No motorboating or anything like that. For some reason, in the Jukebox circles, its a common thing to recap the whole unit. But around here - with guitar amps - it usually only when necessary.
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I would approach this from an evaluation and troubleshooting standpoint, rather than just wholesale replacement.
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Yeah - I think that way too.
thanks
Don