We found this simple circuit in December 1975 Radio Electronics magazine. The integrated circuit is the 4009 CMOS, and the circuit works in both TTL and CMOS depending on the power supply.
A rectangular signal applied to the input of this circuit becomes a negative pulse, which...
This circuit was found in a 1980 publication, but it can be assembled using a BD135 for Q1 or even...
This circuit, suggested by Sylvania in a 1956 publication, serves as an experimental stage for a...