24 Sep
2015
24 Sep
'15
8:23 a.m.
On Thursday (09/24/2015 at 10:06AM -0400), Mike Stein wrote:
Found a few more boards; I guess the displays,
optocouplers and surge
suppressors suggest an industrial system of some sort, perhaps custom or
limited production.
Wonder why that type of connector wasn't used more often for a bus instead
of presumably more expensive edge connectors; I think I do have some (CDC?)
boards that are the opposite, i.e. pins plugging into sockets on the
backplane.
https://picasaweb.google.com/115794482077177620188/Mystery68xxCards?authkey…
Those are the same connectors used on the Heathkit H8 and H89 backplanes
but those are definitely not cards that plug into the backplane of either
of those machines.
Chris
--
Chris Elmquist