This circuit was taken from a Popular Electronics from the 90's. The power step can be changed to operate with the most powerful LEDs available today.
This circuit was found in Radio Electronics from the 90s. The transducer is a tweeter and the...
This circuit, obtained from a 1989 publication, can control motors up to 1.5 A. With the LM350 this...
We found this circuit in 2005 Linear Technology documentation. The integrated circuit is LT1787...