VintageKustom.com: Repairing Kustom Amps

Re: Reverb but no tremolo [message #26758 is a reply to message #26750]

Sun, 10 June 2018 06:24

stevem
Messages: 4733
Registered: June 2004
Location: NY

Senior Member

With what I am posting here I am assuming you have a K250-2 model, not a -4 model.
Fender makes a foot switch similar to the original.
It can be had from Antique electronics, there part number is P-271.
If you then get a 4 pin male XLR from parts express ( part number 092-326 ) you can cut the Fender 1/4" TRS jack off and wire on the needed 5 pin XLR.
You do not want to use pin 2 on the XLR as that is the power feed to the original LED lamps the foot switch had.
Pin 1 which is a black wire in the amp is ground.
This leaves pins 4 and 3 .
Pin 3 is a tan wire in the amp, and pin 4 is a gray wire in the amp.
You can wire either pin to either wire it just depends on what effect you want the left or right side foot switch to turn on and off.

You could get a Marshall type foot switch part number P-H71-led and use the power feed on pin 2 to have the lamps work .
The issue with this is that you would likley have to play around with some small 1/2 watt resistors to Taylor the voltage to the LEDs so they do not burn out.
I say this because I think the voltage coming out of the amp is too high for the Marshall foot switch.
Once again with this foot switch you will need to cut off the end(s) and wire in the XLR.

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