VintageKustom.com: Repairing Kustom Amps » reverb feedback problem

Home » VintageKustom.com » Repairing Kustom Amps » reverb feedback problem (K100C-8 4x10)

Show: Today's Messages :: Polls :: Message Navigator

reverb feedback problem [message #20744]

Wed, 11 June 2014 16:48

vintagefan
Messages: 166
Registered: March 2014
Location: Dallas

Senior Member

My K100C-8 4x10 has a reverb feedback problem. Mostly when I run the reverb at 7 or above(on a scale of 1 to 10). The more I turn the reverb down, the more the feedback lessons.....The reverb tank is one I had repaired. The original rubber cover on the tank deteriated when removing it, so I made a cardboard cover for the tank.

I'm wondering if installing a rubber backing to the cardboard cover with the rubber side facing down toward the springs might be the needed fix? Thought I'd ask your opinions what I should do first tho.

[Updated on: Wed, 11 June 2014 17:28]

Report message to a moderator

Re: reverb feedback problem [message #20745 is a reply to message #20744]

Wed, 11 June 2014 17:35

chicagobill
Messages: 2005
Registered: April 2003

Senior Member

Covering the tank with something more sound absorbent will help cut down the feedback. I use thin black foam rubber sheets that I get at Micheal's art supply stores. I think that they are 12" X 18" sheets.

I cut the foam to the size of the tank and then use double stick carpet tape to stick it to a piece of stiff cardboard and to mount it to the open side of the tank.

You can also wrap the entire tank in a foam rubber or padded vinyl sleeve if the feedback is really bad.

Report message to a moderator

Re: reverb feedback problem [message #20746 is a reply to message #20745]

Wed, 11 June 2014 18:32

vintagefan
Messages: 166
Registered: March 2014
Location: Dallas

Senior Member

thanks Chicagobill..

Report message to a moderator

Re: reverb feedback problem [message #20747 is a reply to message #20744]

Thu, 12 June 2014 07:15

stevem
Messages: 4736
Registered: June 2004
Location: NY

Senior Member

If you can not find the rubber at the art supply store, they almost always carry 12 x 12 sheets for Cork that I have used .
Also note that if you have had the tank apart and have not reinstalled the 4 tray hang springs in the right holes in the side of the tank the tray will be loose and more subject to picking up vibrations and in turn feeding back!

[Updated on: Thu, 12 June 2014 07:18]

Report message to a moderator

Re: reverb feedback problem [message #20748 is a reply to message #20747]

Thu, 12 June 2014 08:36

vintagefan
Messages: 166
Registered: March 2014
Location: Dallas

Senior Member

thanks Stevem.....

Report message to a moderator

Previous Topic:	adding an Effects Loop
Next Topic:	Need amp tech

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Thu May 16 07:31:19 EDT 2024

.:: Contact :: Home ::.