13 Jun
2001
13 Jun
'01
12:40 p.m.
--- Tony Duell <ard(a)p850ug1.demon.co.uk> wrote:
Of course it is. It's far from my first choice, but I can not find the
right thing anywhere.
Doh! Right you are. Didn't read carefully.
I suppose I
could cut two down to size, but put them on a PCB with the cut
edges on opposite sides...
It's a bit of a kludge! I've done DS boards on the sort of setup you'd
have at home (bubble etch
tank, UV box). Worked fine -- registration was not as big a problem as
you might think. But through-hole plating is impossible I think.
Right... requires lots of strange processes. For a DS board, people used
to use metal eyelets to line the holes. I even have a few DEC FLIP-CHIPs
made that way.
Sullins has a
50/100 0.125" connector...
My 44 pins was the total -- 22 each side. Which means the 56 pin
connector (28 each side) could be cut down too.... It's still a kludge
and I'd rather get the right part if at all possible. OK, a few hints... Many people wouldn't call it a
computer (although it
is). There are a total of 8 ICs in it, and all are simple 8 pin devices.
A fair number of transistors and diodes, but not as many as you'd expect.
There aren't any TTL gates with 8 pins that I know of, so I immediately
think of linear parts and/or 555 timers. I still have no idea.
-ethan
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