Sound Design instruments
Field Recording Tools
CURRENT Posts
Fuzz Bias Calculators
When building fuzz and overdrive pedals, proper transistor biasing is key to getting the tone, sustain, and response just right….
Pitch control for cassette players
06/18/2025 – Recently updated with better explanation.Here is a stripboard layout that I did for cassette player speed mods….
Microphonium Backup Site
I created a backup site of the excellent Microphonium Schematic Archive. The sdiy.com domain that it resides at is up…














