[time-nuts] Fwd: rare stuff available (National Company NC-1001 Atomichron)
Brooke Clarke
brooke at pacific.net
Mon Dec 14 00:19:35 UTC 2009
Hi:
There are some patents by National for frequency standards:
2883540 Microwave Signal Generating System
http://www.google.com/patents/about?id=5lhwAAAAEBAJ&dq=2883540
2972115 Molecular Beam Apparatus ***
http://www.google.com/patents/about?id=eUhKAAAAEBAJ&dq=2972115
2960663 Frequency Control Apparatus
http://www.google.com/patents/about?id=xvVTAAAAEBAJ&dq=2960663
2991389 Cesium Ovens
http://www.google.com/patents/about?id=8OVZAAAAEBAJ&dq=2991389
2994836 Molecular Beam Apparatus ***
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=2994836
3060385 Carbon Monoxide Frequency Standard
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=3060385
3058023 Molecular Beam Source
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=3058023
3060384 Molecular Beam Frequency Standard Incorporating Control of
Static Field
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=3060384
3088078 Frequency Control Apparatus for an Atomic Beam Tube
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=3088078
3076942 Molecular Beam Frequency Standard
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=3076942
3305290 Molecular Beam Cesium Getter
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=3305290
3328633 Molecular Beam Tube
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=3328633
3258713 Cesium Beam Tube Detector with Niobium Ionizer
http://www.google.com/patents/about?id=jQJlAAAAEBAJ&dq=3258713
Have Fun,
Brooke Clarke
http://www.PRC68.com
Philip Pemberton wrote:
> Spotted this on another mailing list -- thought someone might be
> interested in the Atomichron...
>
> Replies to the OP, please -- his name is Dave McGuire, email mcguire
> AT neurotica DOT com.
>
> ---- begin snip
>
> Subject: rare stuff available
> That's "really rare", not "eBay rare". My employer was supposed to
> get its funding last week and give me a huge cash bonus for putting up
> with month-to-month "survival wages" for the past year, but instead,
> they've hit a legal snag and now they can't make payroll. I've gone
> from merrily making up shopping lists to abject financial terror over
> the course of a day. With my emergency cash buffer long since gone
> (see "survival wages" above), I am in serious short-term trouble.
>
> So it is with a heavy heart that I must consider parting with a few
> things that are dear and precious to me. Two things in particular are
> items that might bring in enough money to help my immediate situation.
>
> First, I have a set of original DEC OS/8 TU56 distribution tapes. I
> emphasize, these are *original*, nearly pristine, DEC-labeled
> distribution tapes. I've had these for nearly thirty years. 'Nuff said.
>
> Second, I have an Atomichron. Yes, a real one, a National Company
> model NC-1001. One of the very few left in existence. If you don't
> know what this is, you probably won't be interested, but in a nutshell
> it's the first commercially-produced atomic resonance frequency
> standard ("atomic clock"), built in 1956. As far as I've found in my
> research there are three of these left of the approximately fifty that
> were built between 1956 and 1960. I've written a short research paper
> describing this instrument and its history, including photos; I can
> provide copies of it upon request.
>
> I'm open to negotiation on pricing, but neither will go cheaply. If
> there's someone here who is interested in either of these fairly rare
> items, please contact me ASAP. I'm planning to put one or both of
> them on eBay within the next day or so.
>
> -Dave
> Dave McGuire
> Port Charlotte, FL
>
> ---- end snip
>
>
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