Hi,
I'm looking for a way to temporarily jumper T to $A on an Apple-1 board to use the CFFA expansion card. Any tips for doing so that is quick and doesn't damage the board?
Rgds, -Jimmy.
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I was chatting with Corey a few years ago about my BASIC EPROM cards and he came up with a really cool jumper method. I'll let him give the details but it looks really simple, configurable, and removable.
image.jpg
Hopefully Corey can share what those little metal pegs are and where he got them. That would suit my needs perfectly for occaisional use of a CFFA.
Those are machine pin sockets. They are made by Mill-Max and Harwin.
I would try Mill-Max 0579-0-15-15-11-27-10-0, "Barb press fit socket for non-plated thru hole", specs state that it can grip pins (or wires) .015"-.022" (commonly expressed as 15-22 mils), which is 0.38mm-0.56mm, and requires a thru-hole at least .040" (40 mil, 1 mm). I would be more confident, but I don't know the size of the holes on the Apple I board. 0579 Receptacle With No Tail - Mill-Max
Both companies have dozens of other types, for plated or unplated holes, press-fit or soldered, receiving different size pins or wires, etc.
8FEA874C-5A9A-46D1-ADD9-D24153A0C891.jpeg