Les Instruments

Circuit Scrapbook

last updated: December 28, 2022

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Easy as pie AR envelope generator.

Simulation


Simple Op Amp Relaxation LFO

About as simple as an LFO gets, all analog, triangle and square out.

Simulation


LED Driver for Vactrol with OpAmp

https://analogoutputblog.wordpress.com/2022/05/04/how-to-vactrol/

This simulation compares two different LED configurations being driven by an op amp. Simulation


BiPolar +/- 10V to 0-5V

Simulation


3.3V -> 5V Opamp scaling

Useful for microcontroller projects that only output 3.3v, but maybe we want something like 0-5V or 0-10V for CV.

Simulation


Simple hard-clipping distortion with op amp

Simulation Simulation v2


Op Amp LED Linear Current Driver (Voltage to Current)

Simulation


Op amp dual Gain stage of white noise generator

Simulation


Circuit Protection

Great little reddit thread