Designed for those with a building-block level understanding of circuit design, this kit includes all the components needed for a universal power supply with positive and negative rails- the builder needs only to provide the regulators and transformer with a center-tap. For the negative rail, care must be taken to use a regulator is designed to output a negative voltage, such as the TI 79xx line.

K83 Features:

• Accepts any pair of regulators in the TO220 format
• PCB, components, and hardware included

Price:

• $13.38 for DIY kit

More Information:

• Product and info available from PAiA