gene heskett wrote: > Huh? Maybe my memory is going south, but in a past life I once used the 5 > volts supplied by the parport to fix that in one of the shacks old > printers. No power was obtained from the printer to do that. ISTR there is > a pin on the db25 that has 5 volts on it, limited to half an amp or so with > a 10 ohm R intended to be used as a fuse in the event of a load short. > > Have the (unprintable comment) removed that power src from parportrs these > days? > Nope, PC parallel ports never had a 5V source on them. Some people hacked the parport internally in the early days so some unimportant pin became a 5 V source. Or, you stole power from the game port or a hard drive connector. I did that often. You could sometimes support a CMOS inverter chip or something from "phantom power" from a line permanently held high via software, but you couldn't get a lot of power out of a TTL output.
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