Found in old documentation, this circuit can use modern equivalent components. The signal has good strength thanks to the use of a power transistor. The Q1 transistor is a unijunction of the time.
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...