This circuit triggers by choosing the higher of two voltages. The circuit is from a 1964 Electronic Design. The transistors are of the time and can be replaced by current equivalents.
Found in an Electronic Design from the 90's, this circuit uses an SCR according to the controlled power....
For the 1 MHz frequency, the pass band of this filter is only 120 Hz wide. The filter is suitable for...
We found this circuit in an English publication from 1995. The Hall sensor used is a component of the...