Working on some ideas for a lo-fi (does that even work in this context?) analog modular synthesizer. The breadboard has a LFO controlling the power to a amplifier. The amplifier is amplifying two oscillators. The signal from the amplifier goes through an ultra simple low-pass filter that kind of smooths things a bit. There is a capacitor or two stuck somewhere in there because they add an interesting change in the attack(?) (or something like that). Here is a video that I haven't watched yet: