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| | |-+  Cut circuit problem & other questions
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Author Topic: Cut circuit problem & other questions  (Read 2477 times)
koffee_iv
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« on: October 16, 2010, 07:38:42 PM »

Some of you may have read  about my volume cutting out problem. After some twiddling (local amp tech had never heard of a Matchless DC-30), I fixed some loose solder connections where we had put the diodes in the rectifier as Nik recommended.  I could get more gain but still the same problem... just not as pronounced.

After more twiddling I came to realize that if I used the cut pot to cut all bass, problem solved. Even if I chose the most bass heavy setting on the tone switch it was fine.

On the cut circuit there are 3 caps and 4 resistors. Which have to do with the bass end? I don't have a multi-meter nor do I know how to work one, but I can solder. Any Ideas on which is the one(s) that handle bass freq?

Hmm... now that I look at the layout some more it appears the cut just cuts all those components out of the circuit, right?

I also noticed the new layout Nik has for the amp includes two caps in the rectifier. Can somebody tell me whats up with that?

Another question; is Nik's Dizzy30 the exact same as a Matchless amp? Is the circuit the same?

I read somewhere the DC-30 was hard on components. Is that true?

« Last Edit: October 16, 2010, 07:43:07 PM by koffee_iv » Logged
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