thanks for the info! obviously i haven't read the development note for a long time, i should read it again! 24V is indeed easy to find surplus and you should even be able to find a switching supply (more efficient). if it were me i'd attach it physically and electrically to the atx supply so i only had one cord but that would require soldering and some care since you'd be dealing with line voltage (any "exposed" line voltage wires should have tubing over them for added insulation, this is common in older pc's and other gear with the power switch on front, i.e. the switch wires will have a piece of tubing over them to increase the insulation and decrease the leakage current should anything touch the insulation). 28V shouldn't be hard to find either if you wanted but if the firewire spec allows for 24V there's no reason unless some gear needs the added wattage available at the same current but higher voltage and hence wattage.
Joshua Coombs wrote: > > ADC specs 4Amps output, so figure 4.5 amps if pushing ADC & Firewire at full > draw as a guestimate. If not using ADC/Firewire and just want the machine > to boot, .5amps will do it. Note, the actual voltage output by Apple > powersupplies is 24v, which is much easier to find in a wall wart than 28v. > : ) > > As far as deriving 28v off a 12v rail on an ATX powersupply, that will only > work if you never want the machine to power off. ATX powersupplies only ------- -- snipurl.com/bajp snipurl.com/bajr snipurl.com/bajz www.heise.de/tp/r4/artikel/18/18957/1.html snipurl.com/baji snipurl.com/bak1 snipurl.com/bajl 207.44.245.159/article7454.htm 207.44.245.159/article7457.htm snipurl.com/b9xk snipurl.com/b9xn -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[email protected]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
