Jonnytexas
Active member
I have built 70 pedals or so, but mostly 808's and various other simple overdrives, phase 90's, PT2399 delays and such. I decided to man up and build this beast. Given the complexity, I have not boxed it. I ran short on TL072s, but had enough to get one side working. I am getting the most lush, badass phase sound I have ever heard (seriously, unbelievably good), but have a high pitched whine (not super loud, but nonetheless annoying). I can't seem to dial out with the trimpots. It got much better when I turned off the lights in my garage, but even using sharpied tape over the LED and LDRs, I can't get rid of the whine. A couple of thoughts:
1) I didn't have any 1044s and used 7660s. I have always used these interchangably without thought in Klones and such, but could this be the issue?
2) I didn't have any 820pfs, but used a 680 and 220 in parallel that measured close (say 900ish, but I was drinking beer, can't remember exactly).
I can post pics tomorrow, but it is working except for the little whine, and I don't believe it is a soldering or component misplacement issue; it sounds righteous except for the whine. Thanks in advance for any suggestions you might have.
1) I didn't have any 1044s and used 7660s. I have always used these interchangably without thought in Klones and such, but could this be the issue?
2) I didn't have any 820pfs, but used a 680 and 220 in parallel that measured close (say 900ish, but I was drinking beer, can't remember exactly).
I can post pics tomorrow, but it is working except for the little whine, and I don't believe it is a soldering or component misplacement issue; it sounds righteous except for the whine. Thanks in advance for any suggestions you might have.
