I made my bench supply with an old 250W AT power supply from an old computer. It works great and has some good voltages (+/-5v, +/-12v, +/-3.3v). Another great thing is that it can put out a lot of power, more then I've ever needed. Actually, I overloaded the +12v a couple of times, but it just shuts off and then you just re-start it. The best part is, it was (almost) free. Most of the switching PC power supplies will require a load on at least +5v to be able to run. I just used a 10ohm 10Watt resistor. You can also find a well-regulated +5v coming from a LM7805-type regulator if you poke around in there. For more info, check out this dude's site: http://web2.murraystate.edu/andy.batts/ps/powersupply.htm Good luck. MJ Brush ----- Original Message ----- From: "Lindy Mayfield" To: Sent: Wednesday, June 02, 2004 11:26 AM Subject: Re: [EE: ] what is a logic analyzer? Thanks! A power supply. I've been getting around that by using the +5 from the Pic demo board to drive most things, and rechargeable bat trees for motors and things needing more current. But that's a good idea, and not so costly. I've got also got a PC power supply. I wonder if I could make my own from that... I'm sure I've run across something describing that on the web. -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of William Chops Westfield Sent: Wednesday, June 02, 2004 17:21 To: PICLIST@MITVMA.MIT.EDU Subject: Re: [EE: ] what is a logic analyzer? On Wednesday, Jun 2, 2004, at 08:00 US/Pacific, Lindy Mayfield wrote: > What would be the next logical piece of test equipment (after a nice > multi-meter) for a still-learning electronics hobbyist? Would it be > an oscilloscope? > I'd vote for a desktop power supply (CCCV, with meters.) Scope after that, if you have the money. If you're cheap, get at least one additional multimeter (need not be a "nice" one.) assuming you already have a collection of solderless breadboards... BillW -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.663 / Virus Database: 426 - Release Date: 4/20/2004 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.663 / Virus Database: 426 - Release Date: 4/20/2004 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.