This circuit was found in a 1970 IEEE publication. The circuit functions as a voltage controlled variable resistor and can be used with audio signals. Transistors admit current equivalents.
This 4-digit counter, using CMOS technology, was found in a 1997 documentation. The circuit is...
This timer can control loads up to 240 W. We found it in a 1967 RCA documentation. The main...
The purpose of this 1965 Radio Electronics circuit is to help observe cycloid waveforms on an...