guitar amp input jack help

BelieveInKarma · 18th December 2003, 11:18 PM

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

BelieveInKarma · 19th December 2003, 12:49 AM

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

svokke · 19th December 2003, 01:07 AM

If you post a picture, probably someone here will see what's wrong.

Magnetmaz · 19th December 2003, 01:38 PM

are you sure you got the same type of jack?

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

-maz

dhaen · 19th December 2003, 06:14 PM

Similar threads merged

SHiFTY · 20th December 2003, 02:28 AM

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...

BelieveInKarma · 20th December 2003, 04:26 AM

Thanks everyone. Im using cliff plastic stereo jacks. I believe they are the right kind.

SHiFTY · 20th December 2003, 07:25 AM

Stereo jacks? Last time I checked, guitars were mono (!)

svokke · 20th December 2003, 10:48 AM

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.

BelieveInKarma · 20th December 2003, 01:01 PM

The amp came with stereo input jacks. I'll post a picture in a little bit.

18th December 2003, 11:18 PM	#1
BelieveInKarma diyAudio Member Join Date: Dec 2003 Location: New York	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

19th December 2003, 12:49 AM	#2
BelieveInKarma diyAudio Member Join Date: Dec 2003 Location: New York	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

19th December 2003, 01:07 AM	#3
svokke diyAudio Member Join Date: Apr 2003 Location: Leuven	If you post a picture, probably someone here will see what's wrong. __________________ In illusion comfort lies

20th December 2003, 10:48 AM	#9
svokke diyAudio Member Join Date: Apr 2003 Location: Leuven	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. __________________ In illusion comfort lies

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

19th December 2003, 01:38 PM	#4
Magnetmaz diyAudio Member Join Date: Nov 2002 Location: Pittsburgh, PA	are you sure you got the same type of jack? There are shorting vs. non-shorting...etc...different brands use different types. -maz

19th December 2003, 06:14 PM	#5
dhaen diyAudio Moderator Emeritus Join Date: Jun 2002 Location: U.K.	Similar threads merged

20th December 2003, 02:28 AM	#6
SHiFTY diyAudio Member Join Date: Jul 2002 Location: New Zealand	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...

20th December 2003, 04:26 AM	#7
BelieveInKarma diyAudio Member Join Date: Dec 2003 Location: New York	Thanks everyone. Im using cliff plastic stereo jacks. I believe they are the right kind.

20th December 2003, 07:25 AM	#8
SHiFTY diyAudio Member Join Date: Jul 2002 Location: New Zealand	Stereo jacks? Last time I checked, guitars were mono (!)

20th December 2003, 01:01 PM	#10
BelieveInKarma diyAudio Member Join Date: Dec 2003 Location: New York	The amp came with stereo input jacks. I'll post a picture in a little bit.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Help on guitar jack soldering?	100949football	Instruments and Amps	8	28th December 2010 06:58 PM
Input jack replacement Crate BT-350	tonynorie	Solid State	6	30th December 2008 11:57 PM
Old phillips car amps with din input jack	IrishboyM4	Car Audio	6	11th October 2007 03:29 AM
NAD 3020 input jack problem	ychousa	Solid State	4	8th February 2007 05:52 PM
input jack insulation?	studiotech	Chip Amps	17	20th November 2004 04:06 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read