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

I got work to order me EasyPC about a year ago, but I've not found the time
to get to grips with it yet.... For work, I usually design the circuit, and
a rough sketch showing what I want it to look like, and farm it out to
another chap who does the layout work for me really cheaply - Last Job he
did for me was free as it was so simple !!)- I only do a pcb every couple of
years in the day job !!

I designed some boards using an old dos version of EasyPC around '92, and it
was easy to use..... didn't do autorouting or anything clever at the
time.....

Tried the Eagle demo.... got a little into it.. but again... didn't have
time...... Was working on a very simple ESB/SW kit as a test (the
slapstick/eprom board with a couple of the NV Ram chips fitted to swap
between the games) ....nowhere as advanced as Clay's or Mark's !!

Diptrace looks pretty good..... For PCB Proto's in the UK I use PCBTRAIN
(http://www.pcbtrain.co.uk/) on the slowest option to save money..... Their
website shows LOTS of links to different PCB layout software......
http://www.pcbtrain.co.uk/schematic/links/

Cheers, Colin

----- Original Message -----
From: "William Boucher" <boucher@mnsi.net>
To: <vectorlist@vectorlist.org>
Sent: Friday, October 09, 2009 4:21 PM
Subject: Re: VECTOR: 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 17:01:27 2009