Seek Wah

Well, this was a nightmare build. And it didn't turn out great in the end. I had no problems in getting it to work following the info i found here. The problem is that no matter how much i tried, i couldn't get it to not produce an annoying clicking sound. After having build the first PCB, i decided to just build the digital part of the circuit, the part that sequences the leds. I built it on the breadboard and connected it's ground to a small amp i use for testing, and there was the same clicking. After a process of elimination i found two types of clicking. One was on the lfo circuit that generates clock pulses for the counter ic. And the other clicks were due to the leds coming on and off, if all were fully lit, there was no clicking.
After some browsing into different types of lfos, that were supposed to solve this issue by having a trapezoid shaped wave instead of a square wave, and even using a 555 timer chip instead of the lfo, nothing was solving it. The 555 timer worsened the situation a lot. Finally, a simple resistor eliminated the lfo clicking, but i couldn't do anything to solve the led clicking, but it's much more subtle as it was when i started. Not happy at all with this build. I hope it's owner isn't as picky as me.