Found in a 1965 General Electric datasheet, this low frequency circuit divides the frequency of a 20 kHz signal by 10, thus obtaining a 200 Hz signal.
This circuit, from an old publication, can also use modern transistors. Note that the unit is...
This small short-range FM transmitter was found in a 1987 documentation. It is intended for the...
This circuit is used as a magnetic field sensor and is based on a Texas Instruments HaII Effect...