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Category: Wah, Autowah, and Filters

Building the Electric Druid pedals

Posted on November 20, 2019November 20, 2019

  This page collects together just the information you need if you’re intending to build one of the Electric Druid effects pedal/stompbox projects. For each pedal, you only really need the construction guide, which includes the full bill of materials (BOM) and a wiring diagram for the PCB in the enclosure. We also provide a […]

Posted in BBDs+Delays, Distortion, Overdrive, and Fuzz, Flanger, Stompbox stuff, Wah, Autowah, and Filters   Leave a Comment on Building the Electric Druid pedals

FilterFX – 12dB/oct LP/BP/HP LFO filter with 8 waveshapes

Posted on April 3, 2019December 3, 2023

The FilterFX project uses the Druid STOMPLFO to control a 12dB/oct state variable filter. A state variable filter (SVF) is chosen because this filter design offers highpass, bandpass, and lowpass outputs which gives us the greatest range of different effects. The LFO offers eight waveforms, including two random waveforms (one does those crazy sample-and-hold effects […]

Posted in Stompbox stuff, Wah, Autowah, and Filters   50 Comments on FilterFX – 12dB/oct LP/BP/HP LFO filter with 8 waveshapes

Electric Druid

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If you’ve got comments, queries, or problems, please contact us. We’d love to hear your feedback about the site, our chips, and your ideas for new stuff!

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Personal use

Druid code and schematics are released under a CC BY-NC-SA 4.0 license, so feel free to download and use Electric Druid code in your personal synth, pedal, or sonic blastertron 2000. Grab a copy of the schematics and tweak away to your heart’s content. If you don’t have a PIC programmer, you can order a chip from the shop. Check the legal stuff for more details.

Commercial use

Electric Druid code and schematics are released under a CC BY-NC-SA 4.0 license. Please check the legal stuff for more details. If you’d like to use Electric Druid chips, code, or circuits in your commercial product, we’d ask that you buy chips from us to help support the development of further projects. We can supply programmed, labelled chips in whatever quantities you need. If this isn’t suitable, please contact us to discuss your requirements. Thanks!