Hello Wild,

> Just a few questions.
> 1. any long extrnal leads to/from the box?

    Yes, there are long leads. I will try to make it a shielded cable.

> 2. how are you using the clear pins on the 74ls164

    They are directly tied to vdd.

> I have used large caps plus diode's in the past to supress spikes on
> 74lsxx's the cap acting like the /MCLR and the diode to dicharge cap ready
> for next switch on.

    Sorry but I don't understand where to put the caps and diodes.

> some early ttl data books had lots of info on this type of problem.

    Mmm I don't have any TTL books, but will try to find something on other
books.

    Thanks,

    Brusque

-----------------------------------------------------------------
Edson Brusque                 C.I.Tronics Lighting Designers Ltda
Researcher and Developer               Blumenau  -  SC  -  Brazil
Say NO to HTML mail                          www.citronics.com.br
-----------------------------------------------------------------

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body