Forum Replies Created
August 23, 2020 at 4:20 pm in reply to: Extra noise #25657
Cap is in and it works great. A little tight in there but no problem. Only hear a slight whine on full boost level which I don’t use. At unity level gain, quiet as that proverbial church mouse. Thanks all…
ScooterAugust 13, 2020 at 11:02 am in reply to: Extra noise #25636
Thanks Brach, it was just a thought but you make sense in how the unit is powered. I tend to use I-Spots and I’ll have to dedicate one to the tremolo pedal. I like to play with a minimum of anything so the whine wasn’t too much bother except I always wondered why… If that doesn’t work I’ll try the capacitor fix. I’ll let you all know what works.
ScooterAugust 9, 2020 at 12:45 pm in reply to: Extra noise #25520
Mine does the same thing when last or in middle of a pedal chain. I’ve had it apart and checked/tested everything. No amount of knob tweaking or pot adjustment made a difference so I put it first in the chain (sonically not the best for me) and LO, noise whine much less. Standalone it’s quiet as a church mouse. Input impedance mismatch? Hope Brach can come up with some ideas…
ScooterFebruary 26, 2020 at 10:58 am in reply to: Barely any trem… #20750
1.8 Vdc (roughly) on both square pads of HF & LFO LED side.
While I was in there, measured resistance on LSR side of both and there is major differences in values.
everything set in middle position (12:00) except volume
LFO pulses to ~ 1. Kohm
HFO pulses to 24 ~ 25. Kohm, would this value not allow any signal to pass or is this still part of the control path?February 25, 2020 at 3:12 pm in reply to: Barely any trem… #20724
Thanks for the FET Brach, That cleared up volume levels fine. Now I seem to be missing any signal from the HFO side of things. In calibration mode LFO sounds fine when Harmonic mix fully counter-clockwise to about halfway. Full clockwise gets nothing except at max gain a faint high-pitched pulse squeal, back to halfway then the LFO seems to cut back in and functions work well. Tempo LED works fine either way. Nothing I can do trim-pot wise makes any difference whatsoever. Case on or off, no difference either.
Ideas please? Test-points I can work with?February 17, 2020 at 5:08 pm in reply to: Barely any trem… #20586
Problem found, me thinks. All solder joints look OK, paper insulator not punctured so I was buttoning it back up and lo! The Triad in Q3 is backwards… I’m guessing this is not good for signal quality. I was going to make something up touting my diagnostic abilities but bottom line, I goofed. I’m not going to be able to remove and reinstall safely so please sir, can I have some more?
Let me know what I have to do to get another one. Thanks and for anyone reading this thread, you can’t check your work enough. Live and learn.
ScooterFebruary 17, 2020 at 12:43 pm in reply to: Barely any trem… #20584
Thanks for getting back to me so soon. I double checked all solder connections before assembly but will do so again (third time a charm). I lost my flush-cut nippers and used regular diagonals and I did make an effort to cut all leads as close to the board as possible, even put a layer of tape over the paper next to the pots. It was a tight fit so leakage to signal ground is very possible. I will disassemble/reassemble and let you know. I’ll even change the LED’s to their proper position.