This circuit was found in a Signetics documentation from the 1980s. Next to the figure are the waveforms of the generated signals. The transistor admits equivalent.
This circuit is from a Popular Electronics from April 1991. The magazine no longer exists, but the...
Using two 741 operational amplifiers, this low-pass circuit has a cutoff frequency of 10 kHz. We...
The SCA is a signal superimposed on the FM signals that make it possible to eliminate...