How are you handling the cabling issue?
Cables :)
:-) indeed.
(I also laid out a PCB to plug in the backplane
and accept a
standard 40 pin IDC header connector). Had five fabricated and
made 3 foot ribbon cables.
Sounds great. If several folks wanted to get into a bulk-buy, we
could probably get a stack of those cheap. I was getting 12" long
boards with inches of gold fingers (GG2 Bus+ - 100-pin Zorro plus
16-bit ISA) for well under $20 each, q 100., with silk screen and
solder mask. Panelled out, something like this could be as cheap
as a few bucks each in sufficient quantity.
No matter what the device (external memory, external disk, etc.),
I'd *love* to have a stack of inexpensive paddle cards to interconnect
a variety of devices I have. Another bonus is that the modern
end of the cable does *not* have to resort to hard-to-find DEC-style
slots and fingers. 40-pin IDC stuff is about as cheap as it gets.
Also, it might be interesting to experiment with them as a base for
simple prototype modules (I keep kicking around an idea for a
crystal-controlled M452 replacement for higher-than-110-baud use
on an M706/M707 set) - just attach the "device" to the 40-pin
spot and go.
I could probably put dozens of these to use in the first few months,
all by myself. I would probably even be willing to act as a point-of
contact on a group order. The more the merrier.
As long as they were desigend to be flexible, so that traces could be
cut and jumper wires installed to make whatever type of cable connector
you might need, such as Omnibus or unibus connectors, they would be
very useful. I'd like to have a few myself, just to make a M993 cable,
or maybe omnibus extender cables, etc.
The company you were thinking of with the breadboards is Douglas
Electronics. These are scans of information i recieved from them.
http://www-users.itlabs.umn.edu/~lemay/computers/dec_breadboards.html
-Lawrence LeMay
lemay(a)cs.umn.edu