Karl Adams
Electronics tutorials and projects, with an emphasis on audio-related topics.
Attenuator Controller Redux - did it work?
Glitchy clock - cause and cure (aka the perils of propagation delay)
Attenuator Controller Design Concept
Precision Attenuator - Op Amp Oscillation & THD test
DIY Amplifier Project - Attenuator PCB design error
DIY Amplifier - Input Selector Revisited
DIY Amplifier - Input Switching
Error Correcting Headphone Amplifier - Testing
Error Correcting Headphone Amp - Introduction
Marantz PMD-602a preamp - teardown
Marantz PMD 602a preamp - review & test
DIY Mic Preamp - Front Panel Redux
DIY Mic Preamp - Front Panel Unboxing
LED tracklight power supply failure and replacement.
DIY mic preamp build - more adjustment and tweaking
DIY mic preamp build - testing part 2 (Electric Boogaloo)
"That Sinking Feeling" - JFET Constant Current Sources explored...
DIY mic preamp build - first "smoke test" of new PCB
DIY microphone preamp project - Introduction
DIY mic preamp - VU meter driver demonstration
DIY microphone preamp project - VU meter driver
Adjusting the bias of a condenser microphone