Recent content by maertz13

built the board, installed the drivers, pulled down some programs from github. loaded one into ASprogrammer. program. completed. take it over to my test rig, plug it in, no effect. wet/dry just acts as a volume control. i'm so out of my depth here. help

this should be one for the ages. I was asked to take a look at this bad stone for repair. I made no promises, but said I'd take a look. shewwwww boy does this thing smell bad. and the work in here might be worse. it would seem there was an attempt to remove the manual phase option. Can't say I...

got side tracked with other projects. just got it boxed up, and now that it's grounded in the case, the oscillation is basically gone. if i crank the gain AND the mids, it will make a funny honk noise when i turn off my gate. but under normal use cases, the problem i was having before is...

the gain knob, and generally when it's over I'd say 80%. the pitch of the oscillation changes as the knob is turned. oddly when I put my finger on the bass pot it pretty much goes away. the residual noise is likely a mix of the absurd amount of gain and the crappy wiring in my apartment. I use...

these

just the standard enclosed plastic mono jacks from tayda. i don't tend to box them up until i confirm they are built correctly, so if the enclosure is going to help ground it all, then i can proceed.

shielded wire didn't do anything. and my jacks are all the way down by the switch. nowhere near the gain knob. is this thing going to be grounded once i put it in the case?

other than the constant sine wave ringing over the note, pretty incredible. got some shielded wire in the mail. hoping that solves the issue

would that make it less slap-backy at with Dim turned all the way down?

i haven't boxed mine yet. currently testing and yeah, crazy oscillation with the gain up. 2 gates to take care of it. touching the top of the bass pot seems to quiet it down. touching the mid and treble pots make it worse. i've reflowed them all to make sure i don't have a bad ground or...

got it sorted. i was right. that 1k resistor was eating up all the power. error in the layout. all good now. thanks for looking. saving this for posterity

Did some measuring. Only getting 1.5v at pin 8. Seems to be getting robbed by that 1k resistor right after the protection diode. I found this schematic, which I’m sure isn’t quite official, but might point to the problem. Right here in that same spot there’s a resistor just labeled “1”. Not 1k...

working from this layout, which i know is unverified and has no support in the comments. built it, checked it a hundred times, i'm confident that my build is solid, but the layout might be an issue. used 5532 op amps. got no output signal. with an audio probe i was getting signal at pin 3 and...

Very interested to see if anyone knows what adjustments one would make to eliminate some noise. This thing is NOISY

simplified it significantly and followed the diagram you drew. put the resistor on a switch so i could A/B and also have 2 modes. and seemingly all it's doing is cutting the repeats short and not actually changing the frequency response at all