The circuit shown in the figure on the right can be used on a data transfer bus with the use of an integrated of the appropriate family.
This oscillator uses a small IF transformer taken from an old transistor radio. FET admits...
Here is a high-quality intercom for demanding readers. The circuit is from a 1982 documentation. Of course,...
This automotive tachometer circuit uses a FET and a 1 mA full-scale instrument. We found it in the...