light filter

Stompboxes circuits published in magazines, books or on DIY electronics websites.
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Nocentelli
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Post by Nocentelli »



Simple LPF-ish filter circuit using one opamp, based on the filter from Ray Wilson's Weird Sound Generator

...but with the frequency sweep controlled by a proximity-detecting external LDR, manipulated by foot or hand (nicked from deadastronaut's "Lightwah" circuit):
lightfilter_schem_nocentelli.png
lightfilter_schem_nocentelli.png (7.67 KiB) Viewed 118 times
Vero, not yet verified:
lightfilter_vero_nocentelli.gif
Note that the vero does not include a resonance control (I think I will always use it just below max, hence the 680 ohm resistor in place of a pot).
brownwhopping wrote:How can I learn by reading threads an making circuits, when some day I can see a lawsuit or somebody beat me in the face for that?

phatt
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Post by phatt »

:applause: Mate that is clever thinking. I love it :thumbsup
Phil.

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