This circuit is from an 80's Radio Electronics. The circuit has several output options for 50 mA currents with load indicator through LEDs.
In the figure we have the way to obtain an adjustable 1 to 10 mAconstant current source. The...
This circuit sources a Constant current to a load. The current is determined by R2. In the...
This circuit was found in the January 1992 issue of Radio Electronics magazine. The capacitor...