Re: Quad 303 repairs.
paulsherwin, I am not a electronics expert but I have built my own Marshall blues breaker amp clone, and sorted other guitar amps with problems.
Radio Wrangler, I have kept the old transistors. the two new RCA ones are supposed to be old, and the same number as the old ones I took out. I read a lot of posts where bad power transistors cause this amp to overheat. I tried them with a multimeter. I asked here because I thought someone might know what causes the fuse to blow when you replace them.
Thanks julie m, The other night I put one of the old transistors back in, I will put the other old one back in tonight to see if it still blows the fuse. The fuse was not blowing before I took the old two out.
Thanks.
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