Homebrew PCBs

Paul,

According to http://www.vego.nl/7/7_110.htm the L7180 is a Darlington
Driver...

L7180  4 x 80 V darlington-driver

Can't find anything about the L6503...

hansw

Paul Waller wrote:

>  Hi all,
> Anyone heard of a chip called a L7180 that used to be made by SGS? I
> have a board with about 40 on it and thought that it could be good to
> drive steppers but I have no info. When I saw the circuit with the
> L298's on it I went to the junk store and dragged it out. I think it
> may have come from a Line Printer. There is also a driver chip called
> a L6503 Have tried searching the net and Chip Directory et. but no
> luck so far. Seems a shame to toss it out.
> I've been following this group with great interest trying to learn a
> bit about CNC and thinking about building a machine to drill
> circuitboards and cut out parts for model aeroplanes. I have built
> various stepper drivers in the past mainly to rotate bits on
> scientific instruments.
> Cheers,
> Paul Waller
> University of Tasmania
> Australia.
>
>
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>
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