Hughes & Kettner blu amp dropping out

zamboknee

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My Hughes & Kettner blu edition 60-r amp's volume is dropping in and out. It'll just drop and then come back.
I tried wiggling the cords, swapping them in and out but still does it.

I opened it up, sprayed some electronics cleaner in the pots, checked the solder and put it all back together.
The problem continues though.
I plugged in headphones and the problem is there too.
Doesn't matter which guitar is plugged into it.
Is this a fix for a capable DIYer such as myself?
 

jarledge

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it could be maybe heat related ? Does it happen after the amp has been on a while ? Have you tried plugging it in to a different outlet ? Have you checked the voltage at the wall socket ?

amps can start to act strange once they heat up. The heat can mess with capacitors and cause them to drift in value and/or allow AC current in to the circuit and that can cause some issues.
 

zamboknee

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it could be maybe heat related ? Does it happen after the amp has been on a while ? Have you tried plugging it in to a different outlet ? Have you checked the voltage at the wall socket ?

amps can start to act strange once they heat up. The heat can mess with capacitors and cause them to drift in value and/or allow AC current in to the circuit and that can cause some issues.
It happens soon after turning on. I've plugged it into multiple outlets and same thing happens.
 

zamboknee

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I think I've figured out how to re-create the problem.
If I play softly, pretty soon it'll drop out and get a little 'crackly.' But as soon as I WAIL on the strings, the amp comes back to life.
Thoughts?
 

Turd Ferguson

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I think I've figured out how to re-create the problem.
If I play softly, pretty soon it'll drop out and get a little 'crackly.' But as soon as I WAIL on the strings, the amp comes back to life.
Thoughts?

Are you sure it's not the guitar? Try a different guitar if you haven't already.

Maybe the amp's input jack is bad/dirty?

Edit: never mind the guitar question. Re-read the OP. LOL.
 


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