26 Nov
2007
26 Nov
'07
3:49 p.m.
On Saturday 24 November 2007 23:31, Ethan Dicks wrote:
I am darn sure they were.
The User Port on all the C=3D machines is
more-or-less the same... 12x2
0.154" edge connectors.
I thought those were 0.156"?
I'm trying to remember what all edge connectors used to be common. I'm=20
thinking that 0.1", 0.125", and 0.156" were some of the more common
siz=
es=20
There was a UK 0.15" one, which was not quite compatible with 0.156"
ptich on long connectors (I found that out the hard way!). And I have
seen 0.2" pitch ones.
of connector finger out there. And how many pins?
Seemed to me there wa=
s an=20
awful lot of stuff out there that used 22/44 pins of 0.156" spacing. I'm=
=20
wondering what other ones might have been especially common.
0.125", 100 pins (50 on each side), obviously (S100 bus, HP DIO slot, etc)
0.125" 36 pins (18 on a side, sometimes just single-sided), DEC
flip-chip, etc
0.1" pitch in all sorts of widths. 62 pin is of course the 8 bit ISA slot.
20, 34, 40, 50 are all very common. As is (at least over here), 43 pins
with a polarising key in place of contact 37 (that's normally
single-sided, I have seen the dobule-sided 86 pin version, though).
0.156", 18, 22, 25 pins pere side are especially common, but many others
turn up.
In the UK, 0.156" connectors are not common, to the extent that I don't
know a UK supplier for them. When I need one for repairs or making test
rigs/extenders for USA-designed machines (e.g. HP stuff), I have to order
it from Digikey (and pay the shipping...)
-tony