This circuit was found in the February 1994 issue of Electronics Now magazine. The circuit uses 6 and 12 V regulators that must be equipped with heat sinks. The current is 1A (max).
This constant current source from a 1980 publication can be used on a battery charger. Transistor Q1 may...
We found this circuit very simple in an old documentation. The relay is high voltage sensitive, but...
The network formed by resistors and capacitors determines the frequency of this sinusoidal...