Re: Another Zip story...

[bazyar@netcom.com (Jawaid Bazyar)]

o9938156@wsuaix.csc.wsu.edu (mark lyon) writes:

>Weren't some early Zip's 4-layer?  If so, why was the design
>scrapped?

  I don't know. If anyone out there has a 4-layer Zip I'LL BUY IT :-)

>Obviously, the shield is doing _something_, because I can't boot
>at all w/o it, and the GS will run for a little while at least,
>with it.

  Hmm.. I just don't see how RF could make that big a difference
(but again, the Zip is just two-layer, so who knows).

>Thanks for the tips, I'll try them.  Hey, capacitors are cheaper
>than SRAM's!  Are the power/ground pins on the SRAM's the
>somewhat usual pins 1&28?  Are the TTL parts you refer to
>the 74Fxx chips?  And, finally, what are the power/ground
>pins on the slot connector?  Thanks!

  Yes, the 74Fxx chips are the "TTL" (I use the term 'ttl' loosely,
to mean the 74xxx series generically).
  I'm not sure what the pinout is. I have that info at work, I'll
post in a few minutes.

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