This circuit was obtained from a 1967 General Electric documentation. The circuit makes use of unusual SUS today. Other steps can be added to the circuit.
This circuit was found in the December 1995 issue of Electronics Now magazine. The circuit...
This circuit for experimental radios and other applications is from a documentation from the 50's....
This one-digit photometer using CMOS circuits was found in a 1989 documentation. The circuit is...