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Post subject: Bassman 250/210 started buzzing - really loud!!
Posted: Wed Feb 27, 2019 3:09 am
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I bought this thing new, but it probably has less than 25 hours on it. It worked perfect when I parked it in a closet 6 or 7 years ago. I pulled it out a few weeks ago, plugged it in and everything was fine, but I noticed that the volume pot was a little scratchy. I figured it was from sitting and I'd eventually clean it, but no big deal. Today I was practicing and decided to switch basses. I turned off the amp, unplugged, switched basses, plugged back in, then turned on the amp and it's buzzing, loud. After a few seconds it gets real loud. I've tried all combinations of plugging in different cords, basses, and nothing plugged in. I've unplugged the amp, plugged it back in, and plugged it into a power strip, still buzzes. Here's a video I just took with nothing plugged in and both volumes zeroed. Any ideas?


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Post subject: Re: Bassman 250/210 started buzzing - really loud!!
Posted: Sun Mar 03, 2019 2:55 am
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Joined: Fri Feb 05, 2010 4:31 am
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Location: Province de Québec, Canada
It is a all solid state amp, nothing you can do, amp must see a tech.


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Post subject: Re: Bassman 250/210 started buzzing - really loud!!
Posted: Sun Mar 03, 2019 11:21 pm
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stratele52 wrote:
It is a all solid state amp, nothing you can do, amp must see a tech.


I was able to find some forum posts somewhere else that talked about Bassman amps of this era having some solder issues. It suggested a caveman test (smacking the top of the amp with your fist) to see if the problem resolves, it did. I just had to re-flow the solder in a few spots I thought might be the culprit, I went ahead and cleaned the pots while I had it apart too. It's 100% now. Thanks.


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Post subject: Re: Bassman 250/210 started buzzing - really loud!!
Posted: Mon Mar 04, 2019 2:03 am
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Joined: Fri Feb 05, 2010 4:31 am
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Location: Province de Québec, Canada
Great ,I'm happy for you amp working now :)


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