Next Week's Project: A Siren Generator for Police Cars, Ambulances and Fire Engines.

Learn How to Make a Printed Circuit Board at home using the Iron & Laser Printer method and Ferric Chloride Etchant. A printed circuit board (PCB) mechanically supports and electrically connects electronic components or electrical components using conductive tracks, pads, and other fe... view more

• circuit
• How to Make a
• Ferric Chloride
• etchant
• etch
• Laser print
• printed circuit board
• PCB
• DIY