The configuration shown was found in the October 1974 Radio Electronics magazine. The integrated circuit used is the CD4001 and the power supply depends on the application.
We found this circuit in a publication on operational amplifiers from 1978. The circuit is made...
This circuit allows the detection of RF signals using the lowest range of direct currents of a...
This circuit was found in the Radio Electronics magazine of May 1990. The supply voltage depends on...