This bench circuit was found in the February 1998 issue of Electronics Now magazine. It can be used to obtain a very wide range of capacitances for testing.
We found this transmitter in 1980s documentation. Coil data is found next to the diagram and...
In the figure is a diagram of a basic alarm with CMOS circuits and transistors obtained from a...
The integrated circuit of this project found in an American publication from the 70's is not very...