[Simh] NH14 and TR01
Timothe Litt
litt at ieee.org
Sat Feb 27 18:02:45 EST 2016
On 27-Feb-16 17:42, Paul Koning wrote:
> Height Analysis was the category assigned to the N class part
> numbers way back. The vocabulary was different
> then. DEC modules included Pulse Amplifiers and Pulse delay lines. The
> KA10 was built with asynchronous logic
> (no clock). It's more likely that the name came from that - but I don't
> know. It's actually quite odd that the NH14
> ended up there, as A* was used for DA/AD converters. It's possible that
> someone slipped NH as a play on the
> state past the chief engineer's office. Or it's possible that you're
> on the right track and the application area
> was one of the national labs.
> I would guess a simpler explanation: the application area is nuclear physics, so N may simply be "nuclear".
>
> paul
>
What the OML says (and what I originally posted) is:
Note that A is reserved for ADCs, which this device clearly is.
It was actually quite involved to get a part number assigned. There
was a passion for
semantic part numbers, for consistency, and for accurate
characterization. This one is
an interesting anomaly. Aside from a series of packaged PDP11-based
SCADA systems,
very few N-series part numbers were actually issued, and they seem
random. VAXcamera is one.
"National Labs" = DOE facilities: Oak Ridge, Livermore, Sandia, Los Alamos.
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