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Ok I’m going to check again to see if I have a wrong resistor value.

Dude I am currently troubleshooting my Byzantium Flanger and I was looking at your build. I noticed that you have a 47k resistor for R37, but the parts list and silkscreen call for a 4k7 resistor for R37. Was this an intentional modification?

I just checked the voltage at each pin on the 4558s. I got the following on both: 1. -4.37 2. -4.37 3. -4.37 4. 0 5. -8.86 6. -4.37 7. -4.37 8. -4.37 Do those values seem correct?

Could this be caused by having the wrong value for a resistor?

Ok there are the pictures of the board ^. You can see that the female headers have extra sockets, but I used tweezers to remove the connector bits (essentially turning a 4 pin or 3 pin header into a 2 pin header). Also, I have two capacitors running in parallel to get the value I needed.

Yeah, it’s weird. The pedal works fine for approximately 30 seconds each time I unplug and plug the power back in, and then after 30 seconds it seems like the LFO stops oscillating. Any ideas?

I understand that I am supposed to set the clock to 40khz using TP1. But, how do I actually measure it? Put the black probe on ground and the red probe on the test point? Both on test point? Pity me for being so ignorant.

https://aionfx.com/app/files/docs/spectron_documentation.pdf Would I just jumper the pads? Thanks!

Hi all! I am working on a build that calls for some NSL-19M51 photoresistors. Apparently these are not ROHS compliant and contain lead. Can somebody explain what this actually means in terms of health? Is the lead somewhere inside the encapsulation where I won’t be touching/interacting with...

Woah! That would be awesome. Let me go through my trash first to see if I threw it away. Also, maybe you could just ship it with my next order, which I plan to make today! Thank you!!

Hi all, I got my Viibrato PCB in the mail recently, and I don’t think I received the ATTINY microcontroller. It’s possible that I threw it away with the envelope. Would I be able to buy an ATTINY on mouser? Or is it a chip that has to be programmed first? Thanks!

IT WORKS!!!! THANK YOU!!!!

HAHA IT WORKS NOW!! IT WORKS!! It sounds glorious!!!! You guys are awesome.

Ok so another member just pointed out on one of my other builds that I had done some 10k resistors instead of 1M. I just noticed I made the same mistake on this build. I am going to fix it when I get home and see what happens.

Oh my gosh you’re right!! I wonder if I made the same mistake on my XC phase!! Thanks so much for pointing this out! I can’t wait to get home to try to fix it.

Hi everyone, I was a little hesitant to post this considering how much of everyone’s time I’ve taken on my other post about my XC Phase, but here I am again. I just finished a Cepheid Chorus build and it doesn’t seem to be working correctly. Even with the rate turned all the way down, the LFO...

Welp, I guess I am now on the hunt for a new matched quad!

Yes I just now desoldered all of the ICs and put in sockets and then new ICs. Still getting the exact same result. :/

This is the only time I have ever not used sockets. I ran out of sockets and didn’t want to wait for new ones to arrive. Lesson learned! I definitely bought some of the TL072s that I have from Amazon. I pretty much expect them to be bogus but they’ve worked in other builds. Ok, when I get...