VintageKustom.com: Repairing Kustom Amps » K-150-8 4x10 combo repair

K-150-8 4x10 combo repair [message #25399]

Thu, 11 August 2016 23:33

myersbw
Messages: 2
Registered: August 2016
Location: SW Ohio

Junior Member

My first post here. Well, I'm grateful for the posters in this forum. I gleaned and found many good tips. My background is engineering tech, but I haven't used it in years. Last couple of years I decided to earn a bit extra building & modding amps & pedals. Well, this Kustom 150 4x10 combo came to me with the reverb/trem channel dead. After some signal injection, the culprit turned out to be the two jfet's in the trem section. It was a minor pain, but I found I could ease the board out past the power lamp socket tabs.

Once that was repaired, I cleaned the pots and replaced the power cord with a grounded one. (Go figure I actually HAD one lying around that was a grounded black cord about 10' long!...good enough!)

Once "tool" I liked using was my iphone 6. I would break the connection with a .1uF cap into a test lead micro clip and that allows me easy injection of a signal along the way. Divide & conquer being the best method to isolate the area quick.

Overall? This amp was in pristine shape cosmetically...black pleats were flawless! Interesting amp! Can't wait to shove my guitar into it tomorrow for a final test. Smile

Cheers!
Brad

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