previous: Gil Ayan q{Are there certain settings that m... -- 8/10/1999 5:49 PM

Re: Replacing trim pots with fixed resistors?

8/10/1999 6:56 PM

bobCT

Re: Replacing trim pots with fixed resistors? Gil,         Re your statement: "the later Dumble-built amps had a "lead channel master volume," which had many names depending upon the amp. This control was a full blown pot, most often called "Ratio" and was the lead master volume. The other control, however, remains a trimmer to this day as far as I know."         The Dumble schematic we all seem to be working from has a Lead Master as well as the trim pots. Where the trim pots brought out ot the panel on later Dumbles or were/are they always left inside? I was under the impression the the trim pots allowed the amp to be "fine-tuned" to suit a particular player's preferences and than left alone. I agree with Steve that bringing them to the panel, whether front or back, would allow you to "tweak on the fly" and would have its advantages. My idea has been to use the same pots that Fender uses as Hum Balance controls...the ones that have the slotted, recessed shafts...as trim pots and mount them on the back panel. In that way they would be readily accessible but out of the way and once you fine-tuned the amp to your personal taste you wouldn't have to worry about bumping a knob and changing the setting by accident.         Bob

 

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Gil Ayan q{ The Dumble schematic we... -- 8/10/1999 7:12 PM