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* A1000/A500 86-pin to 100-pin Expansion *
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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