Against my better judgement, I decided to build this. Early on, I had some passthrough audio and some weaker phase effect. Then I didn't. Used a 7660 for a -9v inverter, off the GFX layout. Worked fine by itself. Didn't like the board though, and only gave me -0.15v. I have quadruple-checked values and placement on the board(s), and only have solid light on the LEDs and no passthrough audio. The 7660 would get very hot, and I feared I fried it. Now it only gets -2.35v alone. Built a 555 inverted, tested out a -8.65v. Tried it with the board, now I get the same (-2.34v), no phase or passthrough. Using 5339 LDRs (all I have), work great in all my other LDR builds. 7660 VR worked great in my MUTRON III build. Using yellow diffused LEDs, except burned one so subbed in a greenie. Still no sound. Only board subs include 2n2 parallel with 4.7n to give me 6.9n (for all 6.8n caps). Used a 330p in place of the 820 (biggest I have unless I go 1n. Have gone over cuts and traces, some dremmel goofs fixed and continuity is good (not the neatest work, but my hands are old. voltages for JRC4558s:
Took out the 4558s and checked each in my TS9 clone. All work fine. Tested voltage inverters and both the 555 and the 7660 work fine. -9.05v (with the 555) measured on pin 4 of all ICs (with chips out). So now?