New thing posted in the Electronics section: a very basic square and triangle wave generator. Schematic and some notes can be found here.
Tag: schematics
After way too much time away from electronics, I finally have something new to share. NANDulator is a simple but fun noisemaker based around two CMOS chips. Check out the demo video below, and have a look at the dedicated page for more info and a schematic.
NANDulator: a wonky, lo-fi DIY noise synth
NANDulator is a simple, lo-fi, CMOS-based noisemaker synth. It uses two IC’s, a CD4093 (quad NAND gate) and a CD4046 (VCO/phase-locked loop), and a handful of passive components. I think it’s simpl…
Some 13 years later, I’ve done a little revision to the Modutronic Messmaker circuit schematic. The Messmaker was intended to be a “beginner” build, and this new revision removes some complexity (and cost). The original version is also still available here and from a link on the page.
The original version includes a direct output from the 555, as well as inputs for the LM567 AM and the 555 CV in. My original thought was that these would be cool features for a beginner’s circuit, giving one easy access to some modular-style interconnectivity. However, all these years later, even I have rarely used these features. The quick & dirty nature of this circuit also means they don’t work the way one might expect with other modular stuff, which has become more common.
I’ve re-posted some of the schematics, samples, and plugins previously available from the old “synthgeek pages” site. See the links in the top menu. More stuff coming in the next few days. There will be new stuff coming soon also, so stay tuned!