A Planet Analog article, “ 2N3904: Why use a 60-year-old transistor? ” by Bill Schweber, inspired some interest in this old ...
Editor’s Note: This DI is a two-part series. Part 1 discusses audio oscillators, namely the Wien bridge and biquad, state-variable, or two-integrator-loop configuration. Over the years, the Design ...
If you’ve worked with germanium transistors, you’ll know that many of them have a disappointingly low maximum frequency of operation. This has more to do with some of the popular ones dating from the ...