- Published in issue 12/1999 on page 24
Mains adaptor switch:
improves adaptor efficiency
Mains adaptors are used more and more frequently to power small equipment. A drawback of this is that even when the equipment is switched off, the adaptor continues to draw a small current from the mains supply. The present switch reduces this current and at the same time offers the incidental benefit of decreasing the stray field around the adaptor.