Re: Blinking Light Apple II

["Henry" <apl2research(.a.t.)comcast.net>]

Hello Michael/Alex.

ExpressPCB is a good program and service for the hobbyist, like us.  I just 
recently found a new CAD program, with the help from a couple friends of 
mine, that's easy to use and very powerful.  I've yet to find a PCB service 
that will produce 3 PCB's as cheaply as ExpressPCB though.  I did find a 
service, thanks for logjam, for 3 PCB's for $109 plus shipping.  The PCB's 
have a solder mask and silkscreen if so desired.  It's a good product, 
albeit a bit expensive for the average hobbyist.  Then again, how many hours 
will you be working on a breadboard or wirewrap card?  Isn't your time, and 
fingers, worth it?  These days $100 is like a tank of gas and a pack of 
smokes!

I was thinking about posting a message about the CAD program too.  My 
thoughts were that the more of 'us' using the same program, the easier it 
will be for us to share designs or maybe get bulk discounts from PCB 
vendors.  The nice thing about the CAD program is that if you draw the PCB 
traces, it will produce a schematic.  As you can imagine for my cloning 
projects is a god send!  It's also a nice way to see how some boards or 
circuits work without all the hassle.  It also allows GERBER and .DXF 
importing/exporting of files.  If you had been using another CAD program you 
can import your old designs with very little effort.  The CAD program also 
has a nice autorouter too.  Ok... enough hype.  If you'd like to see the CAD 
program let me know and I'll email you a link and some more details.  This 
is really my first week using it, but I'll answer as many questions as I 
can.

PS - logjam: Stop posing here and go finish your RAMWall!


-- 
Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!

"Michael J. Mahon" <mjmahon@aol.com> wrote in message 
TPydnWRCjKe0M-vZRVn-pw@comcast.com">news:TPydnWRCjKe0M-vZRVn-pw@comcast.com...
> Alex Freed wrote:
>> OK, so I know a few ways to implement this, but what is the market?
>> Probably about 3 devices. So I guess it is more effecient to wire-wrap.
>>
>>
>> Michael J. Mahon wrote:
>>
>>> All I want is a direct display of the Apple II bus, together with
>>> switches to halt the processor, single step it, and perhaps DMA a byte
>>> into or out of memory.
>
> Coincidentally, I just read an ExpressPCB ad offering 3 PC boards
> for $51.  ;-)  (I know, I know--there are other options... ;-)
>
> -michael
>
> Parallel computing for 8-bit Apple II's!
> Home page:  http://members.aol.com/MJMahon/
>
> "The wastebasket is our most important design
> tool--and it is seriously underused."