GaN > Transistors and power ICs: https://en.wikipedia.org/wiki/Gallium_nitride#Transistors_an...
Rectifiers > Rectifier circuits, Rectification technologies: https://en.wikipedia.org/wiki/Rectifier#Rectification_techno...
https://news.ycombinator.com/item?id=40693984#40720147 :
> Is there a rectifier for gravitational waves, and what would that do?
Basically just abs() absolute value eh
IDK what the SOTA efficiency of these is: "Nanoscale spin rectifiers for harvesting ambient radiofrequency energy" https://news.ycombinator.com/item?id=43234022
BespokeSynth is an open source "software modular synth" DAW that can host LV2 and VST3 plugins like Guitarix, which can also add signal transforms like guitar effects pedals. Tried searching for an apparently exotic 1A universal power supply. Apparently also exotic: A board of guitar pedals with IDK one USB-A and a USB-C adapter with OSC and MIDI support; USB MIDI trololo pedals