> > > H-Bridges that can handle 600mA each, they can also be bridged.  These
> > > are reallly simple to use, there what I use in the lower current
> > > configuration of my Motor Driver Kit.
> > >
> >
> > I've used it successfully at 1A without any problems. I can't think
> > of any advantage of reed relays over the 293.
>
>         You have used the L293D or the L293 to 1 Amp?  The L293 is rated
> at .6 A and the L293D is rated at 1 Amp, or they can be bridged for
> double capicity.  Can I also ask where you found the L293's if thats what
> you used, I haven't been able to find them in anything less then 200 min
> order.

I can't remember offhand. I desoldered them from old MFM hard drives.
The
new hard drives with the voice coils have a Hitachi chip that I also
intend on
trying. I have played quite a bit with the voice coils, and if the
Hitachi chip
can produce what I have abused those voice coils with (2A @ 45Hz), They
will
be pretty robust.

If you still have a few old MFM hard drives lying around, I'd suggest
that you
look closely at the board. They usually have very good surge arrester
resistors
on the power input (ever had surge damage on your modem?).

--
Friendly Regards

Tjaart van der Walt
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|  Another sun-deprived R&D Engineer slaving away in a dungeon |
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