more relay trouble

[aegfurn]

I am trying to hook up a relay activated by an output pin of my parallel port. When I disconnect the relay and activate the pin i get a reading of 5v from the pin to ground. When I hook up the relay and activate the pin I get a reading of 2.3v, which is not enough to activate the relay (it needs 3v). What's going on and how can I fix it?
Thanks,
Pete

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[Al_The_Man]

For a circuit Do a search of the forums for 2n7000 , you need a buffer transistor or equivalent.
Al.

[aegfurn]

Thanks Al.
I guess I should have searched first, asked questions later.
Pete

[jfc11]

I had that same problem with a cnc4pc relay board.......never could get it to work......very poor support from them bought one from winford and worked great
Jim