Easy to build, single-board design, 10 x 8cm, all are controls board-mounted Professional quality double-sided, through-hole plated, silk-screen printed PCB Choice of single band, 80, 40, 30, 20 or 17m Approximately 3-5W CW output
30 LED Projects
CONSTANT CURRENT DRIVES TWO 3WATT LEDs By Collin Mitchell - 30 LED Project.
Activated #BuzzerCircuit is an audio signalling device, which may be mechanical, electromechanical, or Piezoelectric.
this diy solar tracker system is useful for maintaing the right angle of the solar panels to the sun.
Simple Sheet Metal Brake: No Welding: 18 Steps (with Pictures)