This resistive sensor was found in a 1969 US documentation. The circuit uses transistors of the time, but current equivalents can be employed.
We found this circuit in a 1973 technical documentation. The circuit is implemented with the doors...
This circuit can be used in PLL, frequency synthesizer in FM and VHF receivers, reducing a...
The CMOS 4046 integrated circuit is not very common today, consisting of a very efficient PLL for...