So this is the circuit diagram of the new low pass filter I came up with. It's basic and pretty primitive and basic, but it works, and in my eyes that's all that matters. I used two tiny yellow LEDs for the blinker circuit which is kind of neat, since when run off of my oscillator circuit I took from a light up bow tie on a cheap dog collar, the lights alternate blinking, and an additional bonus to that blinker circuit is that it only works when you turn the dial to the point where the output of the filter is near 0.

Tips for this circuit; the lane on the right is the ground lane, so this is where you'd put the positive end of your oscillator or connect your grounding circuit to it. The lane on the left is the "live" current, where the "negative" current goes. The circles on the output of this circuit are your output, and the ones on the top are your input.

Part value for the capacitor is 470 microfarad and it is rated at 16 volts. I'd suggest trying different values because, well, experimentation is best for learning! Just make sure that the circuit voltage doesn't exceed the rating of your capacitor and also, if you use an electrolytic capacitor, please avoid wiring it in reverse, as it can damage them.

I also figured I'd use my inkwell pen when I drew this because... well... why not? So sorry if the ink is thin in some areas.

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