This circuit is from the 1993 Motorola Linear Interface ICs. The circuit must use symmetrical power supply and equivalent operational can be used.
This circuit is from an American publication of 1978. It can be assembled with modern transistors, since...
The electrostimulator or electronic massager consists of a circuit that produces high voltage...
This circuit can send signals in both the VHF and FMN bands with a range of a few tens of meters. The...