Search results

Ah sorry, it's an OP07 in there. I'll check it over with an audio probe tonight.

I have a J201 JFET in Q1 that I got from AionFX. I'm guessing that's the place to start? I'm trying to figure out what kind of voltages I should expect along the schematic when checking with a multimeter. I just built an audio probe, seems like an easier way to troubleshoot? I'll be digging into...

I'm working on the Parentheses and ran into an issue here.. Bypass signal is fine, the boost channel works as it should when engaged, but when I engage the distortion, the volume drops to a whisper. If I turn up my amp, I can tell that all of the pots work as they should, as well as the octave...

So, I reflowed everything again, cleaned up that bridged solder joint (thanks Nostradoomus), replaced a couple pots. The boost works when standalone. When I turn on the distortion it's incredibly low volume but I can hear all the of the pots working and when the octave is engaged, I hear that...

I got them from AionFX and triple checked on pinout but will quadruple check tonight.

I just swapped Q1 with a J201. Same buzz... I thought for sure that would've been the culprit. I'll do some further digging...

Runs clean after C2. Hearing loud hum on pin 2 of Q1. I'll look into best part to swap it with.

I used a 2N5457 for Q1 I just built an audio probe and am trying to test it now. Thanks for that info, Locrain99.

I'm stuck with the Parentheses build and am getting a major volume drop when I engage the Octave pedal and in the final 20% of turning the Octave pot CW, it makes a loud oscillating hum. The distortion, boost, and diode switching all work as they should. The Octave pot even makes the loud hum at...

That did the trick! Thanks all for the help and info!

I've tried everything I can think of (as a noob) on this one and cannot get the LFO modulation.. both LEDs light up, the delay and it's pots all work and effect the signal. The internal LED is just solid on. The Depth pot adjusts the brightness of it, but the Wave and Speed have no effect. I...

I noticed the speed pot doesn't seem to make any change. Bad pot?

Hi all, I just finished building my Pitch Witch. Everything appears to work, all of the pots seem to work to adjust the delay. Maybe I haven't tweaked it enough yet, but there doesn't appear to be any modulation or detuning effect. Is the LED supposed to swell? It's just solid on.

Thanks for the info. I'll check that when I can work on the pedal later this week. There definitely isn't any change when I toggle the switch but I can't recall which direction it goes. I realized I didn't have an IC socket for the L78L33. I'm going to put that in and get a new IC as I believe I...

So, I have the pedal somewhat working as it arpeggiates and all the pots and rotary switch work. I get no changes when I toggle the SPDT switch. Not sure where exactly to test for what could be the culprit. Any thoughts? Faulty SPDT?