S-100 Buffered Prototype Board
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S-100 Buffered Prototype Board |
by John Monahan - 10/22/2009 12:24 |
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Andrew Lynch and I have just completed the layout of a new S-100
Prototype Board that is designed to help take away the initial drugery of building S-100 prototype boards. We have laid out the board so all the address and data lines are buffered through 74LS245's or 74LS244's. Most of the common S-100 bus control and status signals are also buffered. So the user can right away get down to building useful circuits without the bus connection/IC overhead. Also the board is arranged so a daughter piggyback (no S-100) board can be attached via a series of connectors. This way you can have cheap simple test boards made before you "burn" your own real (more expensive) S-100 board. Currently we are getting 10 of these boards made for ourselves. If there is a strong demand we could possibly do more for others. We don't have an exact price yet but it should be south of $50/board. If you have a real interst in a board(s) let me know. If we send out boards, they will come with absolutly no warrenty or instructions. Only a schematic which can be seen here is supplied. Nite these will be bare boards. You add your own chips etc. http://www.s100computers.../Cards%20For%20Sale.htm Reply |
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I/O board |
by Bill Degnan - 10/23/2009 22:49 |
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I would love to have a configurable I/O board that I can adjust without soldering jumpers to match the needs of whatever S-100 system I am testing and the PROM space used, ports, etc. I am not skilled enough to make such a thing, but I bet this card would help get one started more quickly. Hope it works out for you.
-Bill Reply |
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