Found in a 90s documentation, this circuit triggers the SCR when there is an overvoltage in order to cause the fuse to blow quickly. The SCR can be a TIC106.
Using the 741 operational amplifier this circuit was found in the August 1993 Electronics Now...
Found in a Popular Electronics from the 90s, this circuit checks the presence of voltage on a...
The power supply shown in the figure provides voltages between 0 and approximately 15 volts, with...