I finished building the Li'l Analog Chorus. Bypass and LED work. I did the smd chips myself. I accidentally soldered the TL074 chip backward and did not realize it until after I finished and tried the pedal. After removing and resoldering the chip, engaging the effect causes a significant volume drop (at least by half) and adjusting the trimpot either yields silence, a super quiet effect signal, or a distorted signal with little/no modulation. I measured the pots, resistors and caps when I was building and all were within tolerance. I double-checked component placement and reflowed all of my solder joints already. At this point, all I can think of is that I damage the TL074 from running current into it backwards, heat, or both. Any other thoughts?
Attachment:
IMG_0148.JPG [ 121.17 KiB | Viewed 2219 times ]
Attachment:
IMG_0151.JPG [ 120.85 KiB | Viewed 2219 times ]
Attachment:
IMG_0150.JPG [ 130.78 KiB | Viewed 2219 times ]