I need an ISA parallel interface board,the older the better - preferably a genuine IBM PC/XT type from the 1980's. They made two: one that was printer only, and the other had video included. A different brand is OK; some of the ICs used were: 74LS374, 74LS174,
74LS155, 74LS245, 74LS244, 74LS240 and other small gates ('02, '05, '86, etc). The printer only version is ideal. If you have various types, please let me know.I have an old Leading Edge computer circa 1984 that has very old interface cards, including a Hercules (clone) Monochrome Graphics card with printer port, and I still have the original text only monochrome printer card, loaded with TTL. I also may still have a bag of old multi I/O cards. The old computer is complete and operable, with a 20 mB MFM hard disk and 5-1/4 floppy drive, and a motherboard with dip switches for BIOS settings. It was slated for the scrap/recycle pile. Any and all can be yours for the cost of shipping. I have lots of other surplus components. See my website for a partial listing.
-- Paul E. Schoen, President P S Technology, Inc. Cockeysville, MD 21030
The multi I/O cards are too new for alteration, the Hercules card is a "maybe" and that original printer card is aceptable. I remember the original PC well, as i bought one about 6 months after IBM came out with the PC/XT; cost me over $6,000 for the whole thing (monitor, full 64K on the motherboard, ASYNC card, FDD card and two single-sided floppies). Upgraded to dual sided floppies whenthey came out, and added a 512K memory card when some add-on company started to make all kinds of better daughterboards than IBM ("better" here means less expensive amd more hardware per card).
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