This design showcases a discrete opamp for audio applications. It features very low noise, low distortion and a class A output stage that will deliver 1ppm distortion into a 600 Ohm load at 12 V peak.
OPEX-1: A Discrete OPAMP for Audio
in Preamplifiers, Technical
Do You have pcb for opex-1 or gerber files?
Hello Grzegorz, unfortunately no – it was a design exercise only, although I might do a board for it one day – but would have to be SMD.
rgds
Andrew