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computer's parallel port

Discussion in 'Electronic Design' started by ragnar_123, Jul 9, 2006.

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  1. ragnar_123

    ragnar_123 Guest

    how do i get the "ultimate" citcuit ?

    i've read that i can wire a relay, using a diode and a transistor,
    anyone gotten the "exact" documents ?

    i want to control 8 relays, and it's 12 volt, about 1 amp's each relay
    shall control...

    so, i hope someone gotten the schematic...
     
  2. Fred Bloggs

    Fred Bloggs Guest

    Yep- those schematics are precious. Run a Google search for "PC printer
    port relay control circuit schematic" and see what turns up-)
     
  3. Fred Bloggs

    Fred Bloggs Guest

    That search gives this first hit, a well-known site loaded with reliable
    information:
    http://www.epanorama.net/links/project_pc.html see the PC parallel port
    section.
     
  4. mc

    mc Guest

    www.lvr.com
     
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