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Any hardware designers in the house?

SwedaGuy

Experienced Member
Joined
Feb 26, 2007
Messages
306
Location
Waupun, WI
I have scematics for a POS device designed around the Intel 8085A CPU. I would like some changes made to the schematics, and have them saved as (I think) a Gerber file, so they could be sent to a 1-up vendor for manufacturing.

There are two primary changes I would like to make:

First, I would like to add front panel functionality like an IMSAI or Altair, including the lights and switches normaly present on those machines. Since the processors are nearly identical, I think this should be feasible. I have scematics for the IMSAI, from which to draw some of this information.

If you're wondering why I can't just use and IMSAI or similar, I can't afford the space for their Monitor program in ROM. I need the entire 64K addressable space for this application.

The other thing I would like to do is change the location of the CPU and support circuitry. Currently, the CPU, a couple of 8255s and the other basic support chips (buffers, address latch, etc.) are on the Motherboard, while the RAM, ROM and the primary communications circuit are on a separate board.
I would like to take all the motherboard functions and put them on a single board, so I can use a passive backplane.

If we have any hardware people interested in working with vintage components, post or drop me a line.

Thanks!
 
Completely off topic but if you need a couple NCR 8085 based POS boxes with the boards/ram/serial intact contact me.
 
I sent you a PM over the weekend. I'd love to know the model so I can search for info on the net. I don't suppose you have the manuals for these machines?

Thanks!
 
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