Ben L Wirz wrote:

> > Reed relays are pretty pricey - wouldn't it have been cheaper to
> > use a couple of PNPs in saturation (only 0.3V drop)?  Of course,
> > the relays give you advantage of complete electrical isolation...
>
>         The L293D H-Bridge IC can be had for $4.00 in singles and has two
> 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.

--
Friendly Regards

Tjaart van der Walt
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