This 10 kHz filter was obtained from an article in Electronics Now magazine in February 1995. The power supply is dual and other equivalent operating conditions can be used.
This signal injector circuit, an astable multivibrator, was found in a 1971 magazine. The circuit can...
This circuit uses only one NC75Z04 port from ON Semiconductor, but it can be implemented with...
We found this circuit in a 70s publication. Transistors are general-purpose types of the time. The...