Plus RECYCLE IT! Save a fortune with our guide to making a bench supply from an old PC PSU! PLANET JUPITER RECEIVER i An easy-to-build radio astronomy project i Listen in to Jupiter and the Sun i Includes dipole antenna design ULTRA-LD 200W POWER AMPLIFIER – PART 2 Building and powering this exceptional amp LOW-VOLTAGE ADJUSTABLE REGULATOR Just the job when you need to step down a voltage $8.75US $10.25CAN £3.95UK SEPT 2010 PRINTED IN THE UK