Power to the people - and especially those following Teach-In 2002! Provides regulated DC supplies of +/- 12V and +5V at 600mA

The mains-driven power supply unit (p.s.u.) described in this article has been designed principally for powering the demonstration circuits offered in Teach-In 2002 Lab Work. It will, though, also prove handy as a bench-top power supply for general workshop use. It offers +/-12V d.c. and +5V d.c. rails at a total cur-rent capacity of approximately 600mA.

The constructional details supplied should make it possible for most hobbyists and beginners to assemble this without difficulty, provided that they have some experience of using a pencil-type soldering iron and have access to "normal" work-shop tools such as a power drill, screwdrivers, etc.

We reiterate our general warning, however, that this is a mains powered design and you should not attempt to build it unless you are experienced at constructing mains powered circuits, or can be supervised by someone who is.