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Started by flester, March 26, 2018, 06:10:15 PM
Quote from: flester on May 13, 2020, 06:12:18 AMCorrection:. 1.At low levels, with overdrive at zero, a. Pretty good clean signal with a lot of hiss via internal speaker.b. Signal disconnects intermittently when using headphonesSent from my SM-A505FN using Tapatalk
Quote from: flester on May 13, 2020, 12:23:04 PMNo crackles when I wiggle any of the pots or jacks.Joe, your mention of ground connections focused me. I think I soldered the overdrive pot, middle leg incorrectly to ground. See before and after photos below. What do you think?Sent from my SM-A505FN using Tapatalk
Quote from: flester on May 14, 2020, 04:44:40 AMYou're right about cleaning up my soldering. Yes, its lead-free solder. And I will continue checking the ground connections.
Quote from: flester on May 15, 2020, 02:22:10 PMThanks for the tip. I now have some lead solder and it is indeed easier to use.I decided to use wire links instead of repairing the broken traces and have good connections now. I am left with 2 issues, which I can live with but would be nice to fix if possible. One is that there's still quite a lot of hiss. Also the overdrive still goes crazy from about half way up, after which I get a very loud low frequency buzz. While half way is more than enough overdrive for me most of the time, theres obviously still something wrong.The pot is new, works smoothly as measures correctly (250K linear). All pots have been cleaned with contact cleaner. Could this point to the opamp or the clipping diodes?Sent from my Acer Chromebook R13 (CB5-312T) using Tapatalk