John Miles wrote:
I think a lot of the later development work on cesium-beam standards was
aimed at reducing their physical size, cost, and maintenance requirements.
Unlike miniaturized, mass-produced, hermetically sealed tubes, the
Atomichron's tube was probably built in a way that permits disas
Hi:
There are some patents by National for frequency standards:
2883540 Microwave Signal Generating System
http://www.google.com/patents/about?id=5lhwEBAJ&dq=2883540
2972115 Molecular Beam Apparatus ***
http://www.google.com/patents/about?id=eUhKEBAJ&dq=2972115
2960663 Frequency Contro
> > Interesting reading on the atomicron. But thats one big rack plus tube.
> > Certainly a piece of history or a very good anchor for a battleship.
>
> The Atomicron is certainly a huge piece and sure it is rare. There is
> few people that I would think of that would consider it. In the best of
>
At 05:41 PM 12/13/2009, J. Forster wrote:
Likely true. There is a DEC museum in WA state, I think. A Paul Allen
thing maybe? They might be interested. Reading 30+ YO mag tape might be
pretty hard.
Isn't a punched paper or mylar tape? The DEC 8e machines I've seen
(controlling NC punches) had
paul swed wrote:
Well the reader is also an issue though I have had some reel to reel audio
tapes that were 30 years old and they had held up very well. Encoded them to
disk a couple of years back.
Interesting reading on the atomicron. But thats one big rack plus tube.
Certainly a piece of histo
Likely true. There is a DEC museum in WA state, I think. A Paul Allen
thing maybe? They might be interested. Reading 30+ YO mag tape might be
pretty hard.
The Atomichron might find a home at the Smithsonian.
The poor guy's situation makes you think about what your treasures are
really worth. :=(
Well the reader is also an issue though I have had some reel to reel audio
tapes that were 30 years old and they had held up very well. Encoded them to
disk a couple of years back.
Interesting reading on the atomicron. But thats one big rack plus tube.
Certainly a piece of history or a very good a
Philip Pemberton wrote:
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
inal Message-
>> >From: Philip Pemberton
>> >Sent: Dec 13, 2009 4:27 PM
>> >To: Discussion of precise time and frequency measurement <
>> time-nuts@febo.com>
>> >Subject: [time-nuts] Fwd: rare stuff available (National Company NC-1001
>>
Dec 13, 2009 4:27 PM
> >To: Discussion of precise time and frequency measurement <
> time-nuts@febo.com>
> >Subject: [time-nuts] Fwd: rare stuff available (National Company NC-1001
> Atomichron)
> >
> >Spotted this on another mailing list -- thought someone mi
Here's a link to some history.
http://www.ieee-uffc.org/main/history.asp?file=atomichron
73, Dick, W1KSZ
-Original Message-
>From: Philip Pemberton
>Sent: Dec 13, 2009 4:27 PM
>To: Discussion of precise time and frequency measurement
>Subject: [time-nuts] Fwd: rar
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
12 matches
Mail list logo
