4 Mar
2020
4 Mar
'20
7:46 a.m.
LEC16 was a copy of the PDP11. Lockheed sold it to BBN. BBN relabeled
it Pluribus.
I was part of the DEC engineering team looking at purchasing the LEC,
as one of the features was the ability to be an Arpanet IMP.
I was quite familiar with t the Unibus, and noticed the print set was
very similar to a negative copy of an 11/20 print set.
I raised this with the boss and legal. The machine was then referred
to as the Lockheed SUE.
//bob
On Wed, Mar 4, 2020 at 7:44 AM Jules Richardson via cctalk
<cctalk at classiccmp.org> wrote:
On 3/3/20 6:18 PM, Jules Richardson via cctalk wrote:
Hopefully collective wisdom can help on this one - does anyone have a clue
what system this core board was from
I think I may have figured it out. Back when I picked these up (I have
another one, too) they were in a pile of boards from all sorts of different
systems, as they were at a location which used to be an electronics surplus
store - so I figured they could be anything.
However, I picked up a couple of Lockheed MAC-16 front panels at the time,
and I was just digging through some info on that machine and realized that
it was also known as the LEC-16; in light of that, the little "LEC" logo on
these boards seems telling. That was a 16 bit system (and as Brent
mentioned, there may be another set of core hidden on the other side of the
plane) and was around the 1969/1970 timeframe, so that fits, too.