A simple headphone amplifier circuit 32Ω headphones ideal for basic elements 1 mosfet (IRF610) and the positive regulator (LM317) crating CD-ROM Box used circuit 10 .20 volts dc voltage is working with 750mA current draw hole pertinaks on does... Electronics Projects, Class A Headphone Amplifier with LM317 and IRF610 Mosfet "audio amplifier circuits, transistor amplifier, " Date 2019/08/01