I dated a girl named Cathy once... This particular Cathy was all I ever needed to remember that Cathodes are negative. YMMV, and apologies to pleasant Cathy's all round. -- James. -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Paul Anderson Sent: Friday, October 19, 2007 15:46 To: Microcontroller discussion list - Public. Subject: Re: [EE] Test for embedded developer candidate On 10/19/07, wouter van ooijen wrote: > > diodes: I don't know an anode from a cathode, I don't want to know and I > don't need to know. I do know the band on the component is the bar in > the symbol, that's all I need. > As an aside, I always remember cathode = negative, because of Cathode Ray Tubes. The electron beam comes from the cathode, and electrons are negative. Thus the cathode must be negative:) -- Paul Anderson VE6HOP wackyvorlon@gmail.com http://www.oldschoolhacker.com "May the electromotive force be with you." -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist