My buddy Tim has a Lenco turntable with a synchronous AC motor, and paid me to build this “Nigel’s Speed Controller”. Basically, it’s an AC power re-generator that produces a much cleaner AC power supply. A low-distortion sine wave generator feeds an audio amplifier, that feeds a transformer that steps up the voltage to 110-120VAC. … Continue reading A “Nigel’s Speed Controller” for a friend