Found in 1965 Delco Radio documentation, this circuit uses transistors from that era. Modern equivalents can be used. The characteristics of the inductor were not given.
Found in a 90s Linear Technology documentation, this circuit is intended for powering cold cathode...
This transistor gain meter was found in a 1960 Sylvania transistor manual. The circuit is for...
This signal amplifier should be installed near the FM antenna to improve signal reception in...