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Old 18th December 2003, 11:18 PM   #1
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Default Problem with Input on Tube Amp

Ok, heres whats goin on:
I broke one of the input jacks on my sovtek mig-100, so I decided to just replace both of them. I wired it up the way it was originally wired up but now I am having a problem.

The low input gets sound but it is very low and not what it is supposed to sound like. The high input does not work at all and i just get a really offensive buzzing. Both channels buzz when I insert the tip of the plug.
My guess is that I messed up with the little jumper cables that connect the two inputs. Can anyone help? I could provide pictures if that would be better.

thank you very much for any help!
-RJ
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Old 19th December 2003, 12:49 AM   #2
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Default guitar amp input jack help

Ok, heres whats goin on:
I broke one of the input jacks on my sovtek mig-100, so I decided to just replace both of them. I wired it up the way it was originally wired up but now I am having a problem.

The low input gets sound but it is very low and not what it is supposed to sound like. The high input does not work at all and i just get a really offensive buzzing. Both channels buzz when I insert the tip of the plug.
My guess is that I messed up with the little jumper cables that connect the two inputs. Can anyone help? I could provide pictures if that would be better.

thanks so much
-RJ
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Old 19th December 2003, 01:07 AM   #3
svokke is offline svokke  Belgium
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If you post a picture, probably someone here will see what's wrong.
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Old 19th December 2003, 01:38 PM   #4
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are you sure you got the same type of jack?

There are shorting vs. non-shorting...etc...different brands use different types.

-maz
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Old 19th December 2003, 06:14 PM   #5
dhaen is offline dhaen  Europe
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Old 20th December 2003, 02:28 AM   #6
SHiFTY is offline SHiFTY  New Zealand
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Take it to a tech. You might have used the wrong type of sockets... A decent tech should be able to fix something like that in 10 minutes flat.

Also be damn careful, those migs have around 500 volts on their output tubes!!! And the caps stay charged for a while...
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Old 20th December 2003, 04:26 AM   #7
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Thanks everyone. Im using cliff plastic stereo jacks. I believe they are the right kind.
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Old 20th December 2003, 07:25 AM   #8
SHiFTY is offline SHiFTY  New Zealand
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Stereo jacks? Last time I checked, guitars were mono (!)
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Old 20th December 2003, 10:48 AM   #9
svokke is offline svokke  Belgium
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The schematic of your amp tells me that it uses mono jack inputs. Stereo inputs look the same, but are wired differently. You should get mono jacks.
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Old 20th December 2003, 01:01 PM   #10
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The amp came with stereo input jacks. I'll post a picture in a little bit.
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