Friday, January 1, 2010
PCB Bug
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Some of these images were obtained from various sources. This site is not affiliated in any way with Apple Computer, Inc. Maintained by John Calande. This BLOG corrects much of the false early history of Apple Computer, Inc. I also show in detail, how to build an Apple 1 clone, and an BASIC expansion card. I work as a Software Engineer. I am always looking for exciting, fun and challenging new projects. You can contact me at jcalande1000 at gmail.com
Thanks for the notes John - you got me interested so I dug out my Obtronix (kit) and verified that there was a trace between D7:7 and D7:10. The trace is clearly visible on the top side of the board and ohm-meter verifies continuity between the pads from the bottom side of the board. My Obtronix board is labeled Homebrew 2005 in the solder layer on the bottom side of the board (above the "Apple Computer 1" logo, which of course is on the top side).
ReplyDeleteI checked the two bare Obtronix boards I bought on Ebay and sure enough one had the problems you've discribed. The other board was just fine. Also a system from a complete kit that I built doesn't have the problems either.
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