Found in an Electronic Design from the 90s, this circuit uses components from that time.
This constant current source from a 1980 publication can be used on a battery charger. Transistor Q1 may...
We found this configuration in an early 1977 publication. The PNP transistor may be the BC558 and...
This 0.5W amplifier was found in a publication of the 1980s. The output transistors can be the...