This circuit was found in the September 1989 issue of Radio Electronics magazine. The circuit uses components that support modern equivalents such as the operational amplifier.
This circuit provides a negative supply for circuit biasing. The current is very low. The voltage...
This circuit is from a project published in the March 1996 Electronics Now magazine. The author used...
Found in a 1964 General Electric documentation, this circuit uses PUTs that are not currently...