At 10:33 PM 2/12/96 -0600, you wrote:

>        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've used the L293D which I got from RS Electronics. It was about AU$18 or
so for two units. The L293D lacks the protection diodes. One of the 0.6A
versions comes with protection diodes. One disadvantage of the L293 could
be the voltage drop. I don't know about the L293 but its bigger brother
L298 rated at 4A drops about 2-5 volts. I'm using a couple of L298s bought
from RS at AU$25 each(?). The MOS based H bridges like the LMD18200 probably
have a much lower voltage drop but are way more pricey.

Regards

Prashant
--------------------------------+---------------------------------
  Prashant Bhandary             | Tel:  +61-2-9662 5299
  Spatial Information Solutions | Fax:  +61-2-9662 5348
  Roads and Traffic Authority   | Email: prashb@rta.nsw.gov.au
  Rosebery NSW 2018, AUSTRALIA  | "2b|!2b" - William Shakespeare
--------------------------------+---------------------------------