Re: PROM replacements, etc. (was re:Just a little show and tell)

Try this:
http://www.diptrace.com/

and try the popular Eagle at
http://www.cadsoftusa.com/

and ExpressPCB
http://www.expresspcb.com/

With the free versions of the above, you have to order your PCBs from them
respectively. To be able to order PCBs from anywhere, you have to purchase
full versions of the programs in order to enable output of gerber and drill
files which are the standard manufacturing files.

William Boucher

----- Original Message -----
From: "Bill" <sociableone@gmail.com>
To: <vectorlist@vectorlist.org>
Sent: Friday, October 09, 2009 9:00 AM
Subject: RE: VECTOR: PROM replacements, etc. (was re:Just a little show and
tell)

> Who do you guys suggest for small run pcbs and which PCB layout software?
> I've got some ideas myself and would like to take the plunge. I don't
> have
> access to high end CAD software.
>
> Thanks,
>
> Bill
>
> -----Original Message-----
> From: owner-vectorlist@vectorlist.org
> [mailto:owner-vectorlist@vectorlist.org] On Behalf Of Clay Cowgill
> Sent: Thursday, October 08, 2009 10:18 PM
> To: vectorlist@vectorlist.org
> Subject: VECTOR: PROM replacements, etc. (was re:Just a little show and
> tell)
>
>> I started this message is response to the question "has
>> anyone made any progress on their Cinematronics stuff?" so I
>> thought I'd add this link:
>> http://www.biltronix.com/CCPU_Custom_Chip_Replacements.html
>> I have tested this small devices on my own CCPU boards and so
>> far so good.
>
> Cool, Bill-- and handy. ;-)
>
> I don't know if I posted this here or not (I know I mentioned it somewhere
> or other) a while back, but I did this thing for SW/ESB:
>
> http://www.embeddedengineeringllc.com/swesb/SW_deprom.jpg
>
> Gets rid of all four of the mathbox PROMs on SW/ESB boards (and usually
> two
> or three *WATTS* of heat generation from the bipolars to boot!).
>
> It is a decidedly un-clever solution. It's just two ~45ns, 5V, OTP EPROMs
> with the mathbox code repeated a bazillion times. ;-)
>
> The one running in our machine at Ground Kontrol has passed 7500 hours
> now--
> no failures, glitches, or other weirdness. (Anthony commented to me that
> we
> actually hit a one year anniversary on keeping Star Wars running without
> interruption. ;-)
>
> -Clay
>
>
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Received on Fri Oct 9 11:21:19 2009