For goodness sake Ben get someone who knows about this stuff to check out your power supply or at least be careful!
Treat mains with respect it can kill you. ( I've put myself across the mains a few times and it *hurts*) You should probably just use a transformer with a LM317 regulator circuit or something. At least this will provide some isolation if anything goes wrong. Nick E do you know a good safe cheap bench power supply? This is your game isn't it? The other thing with switch mode power supplies is that they tend to produce very "noisy" power. So if you're doing analog stuff then it will be affected. (though I haven't seen what the later stuff is like I have to admit.) On Sun, 2002-11-17 at 01:35, Steve Dunford wrote: > There should be +12V, -12V, +5V and +3.3V from memory... -7V would be > from putting the meter across the -12 and the +5, but not sure how you > get +7V > > Have a look at this page - it shows both the outputs, connector layout > AND what two pins to short to get the PSU to go live. Make sure you > only use voltages between the GND connectors and the voltage outputs - > don't use compund voltages got from measuring between two different > rails (ie -7V) as each voltage output has a different current rating. > > http://www.duxcw.com/faq/ps/ps1.htm > > Regards > > Steve > > > Ben Devine wrote: > > > So far I have got out my multimeter and found from the molex > > connectors i can get three voltages. +5v, 7v, +12v, > > The seven volts is from using the +5 and +12v think 12-5 = 7 (learnt > > that from a electrical theory book i got out of the library). The > > motherboard connectors Iam pretty sure from past experinces with the > > internet that i can get 3.5v and 15v of a powersuppy but im not sure > > if it is Atx or the old style one. But I've got to figure out how much > > load > > i have to have on it so it doesn't burnout. > > > > |Ben > > *Another quality Babble By Ben Devine* > > > > Sir Lancelot wrote: > > > >> I will post you a diagram tomorrow Ben - too late to look for it now > >> - some > >> good info on that in my ringbinder > >> > >> ciao > >> > >> Lance B > >> ----- Original Message ----- > >> From: "Ben Devine" <[EMAIL PROTECTED]> > >> To: "Clug" <[EMAIL PROTECTED]> > >> Sent: Saturday, November 16, 2002 1:45 PM > >> Subject: Ot: How does one hotwire an old pSU? > >> > >> > >> > >>> Hi list, > >>> > >>> I want to make a bench to power supply out of one of my old Power > >>> Supplies Prior to the current one (is it atx) What wires does one have > >>> to cross so it doesn't need to be plugged into a motherboard. > >>> > >>> Any help Appreciated. > >>> -- > >>> |Ben > >>> > > > > > > > > -- > > Regards > > Steve Dunford > Essential Technology > [EMAIL PROTECTED] > > > >
