> On Feb 27, 2016, at 5:00 PM, Timothe Litt <[email protected]> wrote:
>
>> Timothe,
>>
>>
>> This list that you published an excerpt from, it it available online
>> somewhere?
>>
>> I am curious to understand what the DEC options NH14 and TR01 were?
>>
>> Are they listed there as well?
>>
>
>
> <cgigidfc.png>
>
> I don't have info on the NH04...but we know that N* is "pulse height analysis
> equipment". But if we look elsewhere, we
> find:
> <icafdbha.png>
Pulse height analysis sounds like the sort of device you use to do gamma ray
spectrography -- scintillators attached to photomultipliers, whose outputs are
pulses with height proportional to the gamma energy.
> So the NH14 is a dual 12-bit Analog-Digital converter, built by DEC's
> computer special systems group in Merrimack, NH.
CSS was in Nashua, next doors to the FAA "Boston Center" ARTCC facility. It's
now partly a billiards club and partly a vacuum technology company. Merrimack
was the home of "Comm Engineering", RSTS development, Typeset-8, Typeset-11,
Assist-11, WPS-8, PDP-15 software support, Telephone Products Group (later
Ultrix engineering) before that moved to Nashua Spit Brook Road. Merrimack was
the first large DEC facility in NH, and according to legend, the place where
Ken Olsen took Mass. governor Tsongas with the DEC helicopter, saying "this is
where we're moving all of DEC unless you do something about Mass. taxes". But
he did not follow up on that threat.
paul
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