The CA3020 integrated circuit was one of the first commercial types, sold in the 1960s. The circuit presented is from 1968 using a power stage with RCA transistors of the time.
This circuit of a Popular Electronics is intended to control a wiper. The circuit consists of a...
Using germanium transistors, this amplifier provides a 540mW output power when powered by 9V. We...
We found this high input impedance, low output impedance amplification stage in the October 1993...