FW: SCSI to IDE/SD Project

Hi More questions of a general nature. I am posting to CCTALK in case anyone else has similar questions. Overnight another $20 came in so we are closer! Thanks and have a nice day! Andrew Lynch -----Original Message----- From: Andrew Lynch [mailto:LYNCHAJ at YAHOO.COM] Sent: Friday, January 18, 2013 7:10 PM Subject: RE: SCSI to IDE/SD Project Thanks! Yes, the $22 is a prototype PCB-only just like the other builders would receive. The builders assemble their own boards (as would your) using their own components they source separately. The final cost of components ultimately depends on how the builder procures their components. The S2I project is meant for early SASI and/or SCSI-1 computers and equipment. It is not intended to replace SCSI-2 or later drives. SCSI-2 or later drives typically are still commonly available and/or commercial SCSI-2 to IDE solutions already exist. The S2I PCB includes a 50 pin dual row header pads typically associated with SASI and/or SCSI-1 internal drives. It could be adapted to a 25 pin external connector like those used on a Mac. It also has the 2mm spaced dual row header pads used on early Mac Laptop 2.5" SCSI-1 hard drives. Typical early SASI/SCSI-1 systems would be the original Sun-1 system, early Mac Plus, early Amiga, early Atari, etc. Usually these machines originated in the late 1970's to mid-1980's. Anything later than that is probably out of scope for this project and would suffer from its inherent limitations. For the builders next stage of build and test I intend to get 10 prototype PCBs which cost about $200. So far we've received $50 so only need $150 more. The theory you could get as many PCBs as you would like but the practical upper limit is less than 10 PCBs since the builders also need some prototype PCBs for their continued development. There is a lot of information posted on the N8VEM wiki in the SCSI to IDE prototype folder http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=SCSI%20to%… %2FSD%20prototypes It is also discussed on the N8VEM mailing list. http://groups.google.com/group/n8vem If you are not familiar with the S2I project, I recommend you read the wiki and mailing list to get a feel for the project and what it entails. We are still in development and although the signs are promising we do not have full functionality at the moment. Thanks and have a nice day! Andrew Lynch Macintosh...