Found in a Popular Electronics from the 90s, this circuit can be used as an electrifier. T1 can be an old TV fly back transformer or an ignition coil.
As monostable we have a proximity switch that can be used as a shield, since the capacitance of...
This circuit was obtained from a 1998s Popular Electronics. The magazine no longer exists, but the...
This circuit was found in the 1972 RCA Power Transistor Databook. Transistors can be replaced by...