Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: heymymy on January 12, 2011, 11:11:04 pm
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Do you all have any ideas or tricks to stop a rattling circuit board, and also a rattling baffleboard?
preferably without damaging the value of an amp. I've got two old rattlers here. :rolleyes:
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I don't want to sound like a smart-alek, but whats wrong with the screws?
I'm guessing at one point the fasteners worked as they were designed.
Investigate each fastener and repair/replace as necessary.
If it is a vintage/collectible, any mods will detract from its value.
Look close, find specificly what's not working and I'll be glad to help from there.
As far as the baffle I might suspect the screws have stripped their holes. A toothpick broken off in the hole is often enough for the screw to bite again and hold tight.
spooging silicone glue or hammering wedges is probably not prudent. Restorations seldom have "quick fixes"
Ray
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If the screw holes are stripped in baffle board, take off the board. Mix white glue with sawdust and pack it in the holes. After dry, pre-drill holes with small drill bit before re-screwing.
Raybob
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It really depends on what actually is rattling.It is almost never a circuit board that rattles,it's more likely a tube.That is,unless the circuit board is not mounted securely.I have never heard any circuit board rattle.But then again I don't sit with my ear up to it and listen for it either.
Baffles sometimes rattle but a quick insulating washer behind the screws can help there.
Sometimes and electronic noise can pass itself off as a rattle.A good going over with a soldering iron will help there.
Then there's people who spend far too much time listening for little noises than playing.I had a one customer who swore up and down his amp was rattling and it turns out the amp was reproducing his fretboard rattle so well that it sounded like an electronic buzz.
Some rattles are so subtle that old ears can't hear them,then you need to record it with a sensitive mic and play it back to hear it at all.
Good luck with your search!