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Guitars, Gear, Tone!
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PostPosted: Wed, Nov 29, 2017 10:27am 
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Hack

Joined: Wed, Nov 29, 2017 8:09am
Posts: 4
Are you human?: 951
This is very strange, but there's an audible buzzing that's coming out of my SL-68.

It's not coming through the speakers, but rather from inside the head itself. Of course, it can be drowned out by shear volume if you're playing through a speaker cabinet but when using it at home with a Reactive Load, it's actually noticeable at low volumes (and totally annoying). Its loud enough to be heard at TV volumes.

I assumed it was a screw loose or something, but oddly enough it seems to resonate differently with what I play as if why I play somehow affects it. What inside the amp would respond like that?

Anyone even come across such a thing?

Thanks,
-Greg


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PostPosted: Wed, Nov 29, 2017 11:40am 
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Rack Systems Ltd.

Joined: Fri, Jul 18, 2008 12:13am
Posts: 2908
Yes you are hearing the output transformer.. that's normal. Driving a amp hard into a load does this,you just don't normally here it with a cab because of volume.

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David Friedman/Rack Systems Ltd.
5419 Cleon Ave.
North Hollywood, Ca. 91601
818-209-4309
Racksystems@yahoo.com


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PostPosted: Wed, Nov 29, 2017 12:55pm 
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Hack

Joined: Wed, Nov 29, 2017 8:09am
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Ok, wow. Learn something new everyday.

I just checked it again over lunch and it 100% changes pitch along with the note I play.

That right?


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