well i dont want to have to have wires sticking out of the pc all over the place thats why. I figured a nice simple card that just plugs in..running a y cable from the internal supply to the outside will not look as clean. On Fri, 12 Nov 1999 08:20:25 -0500 Wagner Lipnharski wro te: >Ok Mike, if this is for a single instalation, your computer and all, why >not just install a "Y" power connector at your PC I/O power supply cable >and then you can install a small terminal block outside with not only >+5Vdc (bunches of current available) but also +12V...? All cpu fans >have those Y cables, so just look at the junk box. > >There is a tendency to be afraid to mess with computer power supply, but >we are willing always to mess with the little and fragil voltage >generated by the parallel and serial driver chips... why is that? > >PC's power supply are strong and some can stand a nice external short >circuit via 5ft #24 wire at +5Vdc without shutting down... The worse >can happens is rebooting the PC, but if you fry a parallel port chip, >you be better buy another mother board or parallel port card. > >Still afraid? ok, install a 1A fuse in the wire! > >Wagner. > >Mike M wrote: >> >> hey guys i built a programmer to program 24lc32 eeproms, i wanted to know if the parallel port would have enough current to supply power to operate the chip. i believe the 24lc32 needs a Vcc of 3ma at around 5v while its writing. If no t i guess ill have to throw on a 9v battery and a 7805. >> >> Send someone a cool Dynamitemail flashcard greeting!! And get rewarded. >> GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41 > Send someone a cool Dynamitemail flashcard greeting!! And get rewarded. GO AHEAD! http://cards.dynamitemail.com/index.php3?rid=fc-41