LED Throwies are an inexpensive way to add color to any ferromagnetic surface in your neighborhood. A Throwie consists of a lithium battery, a 10mm diffused LED and a rare-earth magnet taped together. Throw it up high and in quantity to impress your friends and city officials.
Quoted: introduce the switching regulator which used MC34063A of the MOTOROLA,Inc. in this page. This regulator is housed in the DIP(Dual In line Packge) with 8 ...