Found in a 1965 Electronic Design, this circuit limits surges in a load when power is applied. The diodes and SCR must be according to the load.
This simple circuit for motors that depends on the MOSFET used was found in the January 1998...
This transistorized shield also functions as a logic gate. The power supply can be in the range of 4.5...
Found in a 90s Popular Electronics, this Hartley oscillator uses an output transformer of the type...