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Where to buy 40pin edge-connector (2mm spacing)?

N

NoSp

Jan 1, 1970
0
I need some 40 pin card-edge connectors. It's the kind which has been
for the Atari ST cartridge port.
Unfortunately I can't find them for sale anywhere (Probably because of
the rather unusual 2mm pin-spacing instead of the more common 0.1" -
this makes me wonder if they were made by Atari's own specifications,
or if they're a commonly available, but hard to find part).

Here's a photo of it:
http://img476.imageshack.us/img476/1483/ataricartridgeconnectorqo8.jpg

and here's another photo which shows how it mates with a PCB edge at
the other end:
http://img454.imageshack.us/img454/195/connectedaw0.jpg

Finally, here's a layout I've made of it using Eagle:
http://img206.imageshack.us/img206/8677/40pinatariedgelayoutvv3.png


So, does anyone know where I can buy them from or have any information
about manufacturer etc. which would help me trace down its origins?
 
M

mark krawczuk

Jan 1, 1970
0
hi, they look like the old ISA slots on older type computer mother
boards, a bit longer they are , but cut to fit , maybe, desolder them of the
m/b with a lpg torch ?
mark k
 
N

NoSp

Jan 1, 1970
0
hi, they look like the old ISA slots on older type computer mother
boards, a bit longer they are , but cut to fit , maybe, desolder them of the
m/b with a lpg torch ?

Where can I get a datasheet which shows the dimensions, spacings etc
for ISA connectors?
I can't seem to find anything.
 
G

Graham W

Jan 1, 1970
0
NoSp said:
Where can I get a datasheet which shows the dimensions, spacings etc
for ISA connectors?
I can't seem to find anything.

They are 0.1" pitch anyway so no good for your application.
 
N

NoSp

Jan 1, 1970
0
They are 0.1" pitch anyway so no good for your application.

That's too bad :-(
So the ISA slots have the same sort of connection at the end which
mates to a PCB-edge; 2mm spacing between each PCB "finger", but the
solder-pins at the other end are pitched at 0.1"? Strange.

Another approach to my project would be to use a connector of some
sort that matches the pin-spacing of those Atari connectors (2 rows
(20 pins) spaced 5mm apart, and 2mm apart for those 20 pins, as shown
in my illustration).
Are there connectors (preferrably for flat-cables) that fit this
pinout?
 
G

Graham W

Jan 1, 1970
0
NoSp said:
That's too bad :-(
So the ISA slots have the same sort of connection at the end which
mates to a PCB-edge; 2mm spacing between each PCB "finger",

No! The interval between each edge connection is 0.1". The Motherboard
end is still 0.1".. The system is called a 0.1" double-sided interface.
but the
solder-pins at the other end are pitched at 0.1"? Strange.

Read above.

Another approach to my project would be to use a connector of some
sort that matches the pin-spacing of those Atari connectors (2 rows
(20 pins) spaced 5mm apart, and 2mm apart for those 20 pins, as shown
in my illustration).
Are there connectors (preferrably for flat-cables) that fit this
pinout?

There are loads of different connectors out there - you just have to do
the groundwork. BTW, describing such as 'Atari' connectors doesn't
help as many peeps never owned an Atari.
 
H

Hal Murray

Jan 1, 1970
0
Where can I get a datasheet which shows the dimensions, spacings etc
for ISA connectors?
I can't seem to find anything.

The PCI specs have good drawings. They want $ though.
 
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