Req: Help/Advice on Cromemco System

---------------Original Message: Message: 11 Date: Fri, 17 Oct 2008 10:15:03 -0400 From: "Granz" <granz_consult at hotmail.com> Subject: Req: Help/Advice on Cromemco System I have most of the stuff to put together a System 3. I have the card cage with the 21-slot motherboard and a bunch of cards. The manuals I got with the system include the Cromix manual, I have more than 1 64-K RAM card and at least one TPU, so I believe that mine was a multi-user system. I would like to put this back to near-original, but need a case and power supply. Since I have been unable to find any power supplies which provide the +/- 8 and +/- 16 volts, I just thought of an idea the other day of using a PC power supply and shorting out the on-board voltage regulators to allow them to work at the +5V and +12V of the power supply. In order to do that though, I would need a small (3-5 slot) motherboard to test a couple of cards together. If anyone has any of these available, I would be interested in obtaining them. I do not have much money, but do have some other old computer stuff that I can trade: a VAX Station 2000, an old Sun workstation, many, many old PC parts and systems, lots of electronic parts, lots of microcontroller stuff including several Dev Kits. Also if anyone has done this before please let me know how it went. Thanks, Art --------------Reply: In my Cromemco pile I have a System3 that I will probably scrap, but I don't suppose that's much help since shipping for the box & PS would be pretty steep. Why not just use your backplane for your test? What's a TPU? Did you mean ZPU or DPU by any chance? The most important card in a Cromemco is probably the FDC; hope you've got a working one. Pretty well every Cromemco manual has been scanned and is on the Web in several places; good luck! mike