This 5.1 MHz circuit was found in a 1980s documentation. The frequency is given by the crystal and general purpose transistors can be used.
One 40108 Schmitt inverter or one 4093 gate can be used as a half monostable to be triggered by...
We have a simple and useful circuit found in a 1982 documentation which generates a signal in the...
This circuit, found in a 1989 publication, only works with incandescent lamps. The maximum power...