RGB LED warp effect oscillator Mk2

After a lot of questions regarding the rgb led oscillator, here’s the mk2 version of it.

The principle is exactly the same as the previous build, but this one allows for tweaking via the rotary switches.

The jack with the green ink on it is the input jack……. the ground (gnd) of this jack is connected to the short leg of the RGB led and the ground (gnd) of the output jack via the black wire.

The input Jack’s 2nd terminal (signal) is connected to the centre terminal of a 6 pole rotary switch (white wire on the left)….. each of the 6 switch poles has a different resistor soldered to it… The ends of which are joined together and soldered to the RGB led long leg (white wire on the right)

The other rotary switch has 6 varying capacitors soldered to the 6 pins (long legs soldered to pins) and the short legs with the white strip are soldered together with a red wire attached to the output jack signal terminal…

The remaining resistor switch (white wire), LED + (long leg) and the remaining capacitor switch centre wire(red wire) are all joined together.

Wrap the led in insulation tape or hot glue, or stick in your enclosure so you can see it etc…

You should now have 2 Jack’s that share a common ground with the led short leg.

And the input Jack’s signal wire goes to a rotary switch and then out to the led, which in turn is connected to another rotary switch (centre terminal)… with all capacitor stripes connected (daisy chained)… the white stripe outputs of the 2nd switch, go to the output signal of the jack.

Apply a 0-5v CV source or clock etc.. and you will have a workable warp oscillator with even more potential.

Works great with loads of different eurorack modules and can be made in a 0hp standalone package if required.

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