Part 4 in the series on building a Lunetta synth with a Quad NAND CMOS chip. Now, we add a closed feedback loop through all NAND Logic nodes on the chip back to the first one. The result is an unpredictable, wild, and almost insane gate modulation.
Part 3. In this post, we modulate the oscillator we previously built from a Quad NAND CMOS chip. We use another gate from this CD4093 chip to achieve this. All we need to add is another capacitor and resistor to modulate the second NAND operator by the first one.