IV Curve Tracing with a function generator

I have been asked about curve tracing using a function generator, as opposed to making an AC based octopus. This is a simple build that will let you test components with almost any function generator and oscilloscope. Inspired by w2aew's video here: https://youtu.be/WWY-pakm_OM 0:00 Intro 1:05 Overview 2:55 Curve tracer circuit 5:12 Testing components 9:07 A look inside 11:04 With an analog function generator 14:12 With an analog scope 15:15 Wrapup