This circuit was found in American documentation from the 1960s. The operational amplifier is from that time, but the configuration applies to modern equivalents.
This circuit was found in the March 1994 issue of Electronics Now magazine. The circuit uses a...
This 1965 General Electric circuit uses a "Thyrector" that is a suppressor of the time. The...
Originally in 1986, this circuit was developed to operate with microcomputers of the time like the...