A1000A500 86-pin to 100-pin Expansion

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**************************************************** * * * A1000/A500 86-pin to 100-pin Expansion * * * **************************************************** This HACK will allow an Amiga 1000 or 500 to use it's 86-pin expansion connector as an A2000 100-pin slot!!!!! Parts Needed: 1 100-pin edge connector (Female) 1 86-pin edge connector (Female) 1 74LS86 TTL gate Ribbon Cable PLEASE Refer to included picture for building details: Try to keep the cable length a short as possible, longer cables tend to have noise problems. If used on a 1000 the PAL's should be grounded to help prevent noise problems. Also there may not be enough reserve power to run these cards on a stock A500 power supply. Although I've had it working on a stock A500 with a GVP card ( 40Q + 2Meg) The following products have been used successfully: Commodore A2091 w/40Q+2M GVP Series I w/40Q+2M and w/105Q+2M GVP Series II w/40Q+8M SupraRam w/8M Supra-zi Modems The GVP Series II is very susceptible to bus noise (probably because of the incrediable transfer rates it achieves). My original cable was about 7 inches, it worked with all of the listed products except the Series II. Making the cable shorter proved to be the answer. I've had this cable running for about 5 months on my Amiga 1000 with a Spirit 1.5M Ram expansion and a Commodore 2091 SCSI Controller (w/40M Quantum drive) If you find this usefull a ShareWare fee of $20 will be greatly appreciated. Since I have found it somewhat difficult to find the 86-pin and 100-pin edge connectors. I have put together a Kit with all parts and instructions. This kit is available with ShareWare Registration for $45+Shipping. If you have any additional questions or information. Please contact me at. Joe Pellegrino c/o Computer World 6174 W Flamingo Rd. Las Vegas, NV 89103 USA BBS ClickMeTwice (702)454-7787

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