On Thu, Oct 24, 2013 at 2:48 PM, didier derny <email@example.com> wrote: > I was looking for a proto board for Apple 1 > Apparently the connector on the Vic20 and Apple 1 are similar. > > (I donít have a Vic 20 so I canít confirm) > > http://www.alliedelec.com/images/products/datasheets/bm/VECTOR_ELECTRONICS_TECH/70219604.pdf Boards and connectors with 22/44 fingers @ 0.156" Centers are incredibly common in 1970s and early 1980s equipment. Yes. That board will fit in a VIC-20 (as well as an RCA VIP and is the same kind of edge connector on a KIM-1, AIM-65, and SYM-1, and many more). We used to be able to buy boards resembling that one at Radio Shack. They were about $3.50 (but not as nice - no gold pins, no plated-through holes, but cheap!) in 1984. There is no standard on these, BTW - every vendor ran power and signals to whatever pins were convenient. It's *common* for +5V and GND to be on the outermost pins, but that's not universal. Something to keep in mind when holding a random 44-pin board or unmarked cartridge and wondering what it goes to. Start by labelling the power and seeing what vendor uses that arrangement. It sounds like you plan to make a new expansion circuit. That board appears to be a good one to work with. Vector made quality products. -ethan Message was sent through the cbm-hackers mailing listReceived on 2013-10-24 20:02:13
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