EEVblog #629 - How To Design a Microphone Preamplifier

Part 7 of Microphone Technology with Doug Ford, former head designer at Rode Microphones. This video Doug takes you through the design of the Rode NT3 and NT1000 microphone designs. There is a ton of stuff in here: Closed loop unity gain JFET and bipolar follow circuits. Bootstrapping out miller capacitance. JFET biasing. How to eliminate expensive high value resistors. How to add a bridged-T network to add marketing "pizazz" to a microphone. How to stop oscillation in closed loop systems. How to test and design closed loop systems for stability. ... https://www.youtube.com/watch?v=niZizzHBanA