#465 Testing THD Total Harmonic Distortion of Microphone Preamp

Episode 465 Using an HP 33120A generator and Keithley 2015 multimeter to test the %THD of two microphone preamp circuits. Be a Patron:   / imsaiguy   0:00 measurement setup for THD 5:11 measure preamp 9:19 %THD when preamp clips