Using JFETs, this circuit from a 90’s American documentation can generate signals of 0.15 Hz. The JFET can be of any general-purpose type like the BF245 or MPF102.
In the figurewe present an interesting application suggested by Microchip (www.microchip.com) in...
This is a simple circuit to control a set of lamps from 3 different points. We found it in an old...
This circuit was found in a 1977s English magazine. The transformer is 15 V x 500 mA but...