[time-nuts] Ronald Held's main question (Max Robinson)

Ronald Held ronaldheld at gmail.com
Tue Dec 25 12:32:24 EST 2007


Max:
   Thanks for the corrected link.
                           Ronald


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Date: Dec 25, 2007 12:00 PM
Subject: time-nuts Digest, Vol 41, Issue 77
To:


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Today's Topics:

  1. Re: Ronald Held's main question (Max Robinson)
  2. Re: Ronald Held's main question (Magnus Danielson)
  3. Cs tube cost vs unit replacement (David Welch)
  4. Needed: 58532A Antenna (Bruce Lane)
  5. Re: Needed: 58532A Antenna (Norman J McSweyn)
  6. Re: Efratom M100 oscillator connector (Robert E. Martinson)
  7. Re: Efratom M100 oscillator connector (mlmccauley)


----------------------------------------------------------------------

Message: 1
Date: Mon, 24 Dec 2007 15:03:43 -0600
From: "Max Robinson" <max at maxsmusicplace.com>
Subject: Re: [time-nuts] Ronald Held's main question
To: "Discussion of precise time and frequency measurement"
       <time-nuts at febo.com>
Message-ID: <011d01c84670$77920980$6401a8c0 at BACKROOM>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
       reply-type=original

Here's wishing you a marry time this Christmas and a happy leap second.

Regards.

Max.  K 4 O D S.

Email: max at maxsmusicplace.com

Transistor site http://www.funwithtransistors.net
Vacuum tube site: http://www.funwithtubes.net
Music site: http://www.maxsmusicplace.com

To subscribe to the fun with tubes group send an email to,
funwithtubes-subscribe at yahoogroups.com

----- Original Message -----
From: <GandalfG8 at aol.com>
To: <time-nuts at febo.com>
Sent: Tuesday, December 18, 2007 3:40 AM
Subject: Re: [time-nuts] Ronald Held's main question


> In a message dated 18/12/2007 07:59:49 GMT Standard Time,
> magnus at rubidium.dyndns.org writes:
>
> The link  you get from their  page
> http://tf.nist.gov/timefreq/general/generalpubs.htm
>
> is however  wrong, as it only gives the front document. Maybe one needs to
> indicate to  them that they should make a propper page for it. I have
> downloaded
> the  full TN1337 before, so I'll be fine, but they should fix their
> webpage.
> ----------------------------------------
>
>
> Magnus, many thanks for the pointer.
>
> The full document is here.......
>
> _http://www.boulder.nist.gov/timefreq/general/pdf/868.pdf_
> (http://www.boulder.nist.gov/timefreq/general/pdf/868.pdf)
> (http://tf.nist.gov/ofm/smallclock/References.htm)
>
> regards
>
> Nigel
> GM8PZR
>
>
>
>
>
> _______________________________________________
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>
>
> --
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.5.503 / Virus Database: 269.17.4/1189 - Release Date:
> 12/18/2007 9:40 PM
>
>




------------------------------

Message: 2
Date: Mon, 24 Dec 2007 22:24:18 +0100 (CET)
From: Magnus Danielson <magnus at rubidium.dyndns.org>
Subject: Re: [time-nuts] Ronald Held's main question
To: time-nuts at febo.com, max at maxsmusicplace.com
Message-ID: <20071224.222418.1063024433.cfmd at bredband.net>
Content-Type: Text/Plain; charset=us-ascii

From: "Max Robinson" <max at maxsmusicplace.com>
Subject: Re: [time-nuts] Ronald Held's main question
Date: Mon, 24 Dec 2007 15:03:43 -0600
Message-ID: <011d01c84670$77920980$6401a8c0 at BACKROOM>

Max,

> Here's wishing you a marry time this Christmas and a happy leap second.

Um, no leap second is scheduled for this new years eve.

http://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat

Maybe it would be time for another leap-second at next new-years eve.

God Yule, Merry Christmas and Happy New Year!

Cheers,
Magnus



------------------------------

Message: 3
Date: Mon, 24 Dec 2007 17:18:01 -0600
From: "David Welch" <aceamusements at mchsi.com>
Subject: [time-nuts] Cs tube cost vs unit replacement
To: "Discussion of precise time and frequency measurement"
       <time-nuts at febo.com>
Message-ID: <001e01c84683$3a987830$7110ca0c at win127r2p7m70t>
Content-Type: text/plain;       charset="iso-8859-1"

Does anyone know how much a decent 5071a goes for these days..I hear the tube
new is about 15k..would 27K be a good price for a new unit?

I think upgrading from 5061b to 5071a might be better investment due to the high
cost of a new tube..


------------------------------

Message: 4
Date: Mon, 24 Dec 2007 22:18:59 -0800
From: "Bruce Lane" <kyrrin at bluefeathertech.com>
Subject: [time-nuts] Needed: 58532A Antenna
To: time-nuts at febo.com
Message-ID: <200712242218590666.AF50EE8E at 192.168.42.129>
Content-Type: text/plain; charset="ISO-8859-1"

Fellow clock-tickers,

       I have need of an HP/Symmetricom 58532A reference antenna. It
doesn't have to be in pristine shape as long as it's functional and
'reasonably' priced. For purposes of this argument, 'reasonably' means
anything significantly less than the $130 that Symmetricom wants for a
new one.

       Granted, that is not an unreasonable price to pay for a
good-quality antenna, and if it comes down to it I will order one from
them. However, I feel compelled to exhaust all other possibilities
first. ;-)

       Please drop me a note if you've got one available. Thanks much.


-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
kyrrin (at) bluefeathertech do/t c=o=m
"If Salvador Dali had owned a computer, would it have been equipped
with surreal ports?"




------------------------------

Message: 5
Date: Tue, 25 Dec 2007 02:43:08 -0500
From: Norman J McSweyn <normn3ykf at stny.rr.com>
Subject: Re: [time-nuts] Needed: 58532A Antenna
To: Discussion of precise time and frequency measurement
       <time-nuts at febo.com>
Message-ID: <4770B48C.1090105 at stny.rr.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Bruce,
Have you checked ebay?
Merry Christmas,
Norm n3ykf



------------------------------

Message: 6
Date: Tue, 25 Dec 2007 02:49:08 -0500
From: "Robert E. Martinson" <REMartinson at rcn.com>
Subject: Re: [time-nuts] Efratom M100 oscillator connector
To: "'Robert E. Martinson'" <REMartinson at rcn.com>,      "'Discussion of
       precise time and frequency measurement'"        <time-nuts at febo.com>
Message-ID: <000501c846ca$a1b87e60$6400a8c0 at PentD>
Content-Type: text/plain;       charset="us-ascii"

A connector on Ebay now, see: 250200168413.

Kind of pricey with no backshell or screws.


Bob



-----Original Message-----
From: Robert E. Martinson [mailto:REMartinson at rcn.com]
Sent: Sunday, December 23, 2007 1:34 AM
To: 'Discussion of precise time and frequency measurement'
Subject: RE: [time-nuts] Efratom M100 oscillator connector


HI Mike,

I have 2 FRK's here, both use a connector made by Positronic, it's a "SGM
20".
See http://www.connectpositronic.com/downloads/pdf/C008RevC_HighDenRec.pdf

The Positronic site (for Australia) is:

Australia (Commercial & Industrial & selected Military Accounts)
Walcom Pty. Ltd
118 Pryor Road
Ourimbah, NSW 2258 Australia
Phone: + 61 2 4362 3477
Fax: + 61 2 4362 3293
www.walcom.com.au
Contact: Mark Walpole
mark at walcom.com.au


I bought one complete, used connector assembly on Ebay a while ago for like
$10.  The P/N on the backshell is stamped "M28748/8-D10L1A".



Regards,
Bob Martinson, N1VQR



-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of mlmccauley
Sent: Saturday, December 22, 2007 10:20 PM
To: time-nuts at febo.com
Subject: [time-nuts] Efratom M100 oscillator connector



I got a really good deal on a used Ball Efratom M-100 oscillator, and I
am unable to find a power connector for it. The manual for the unit
states that it is a part number

M28748-/8-D10LIA

Evidently the M28748 series of connectors are fairly widely used in
military equipment, but a search for that particular p/n didn't turn up
anything, none of the parts houses that I deal with handle mil type
connectors, and I really doubt of I would have any luck at all as an
electronics hobbyist calling up a defense contractor trying to buy one
connector (to say nothing of what they would want for it even if they
agreed to sell one to me...).

The connector is rectangular and has three rows of pins, seven in the
two outer rows and six in the center.

Anyone have any ideas?

Thanks in advance,

Mike


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------------------------------

Message: 7
Date: Tue, 25 Dec 2007 02:10:58 -0600
From: mlmccauley <mlmccauley at tx.rr.com>
Subject: Re: [time-nuts] Efratom M100 oscillator connector
To: Discussion of precise time and frequency measurement
       <time-nuts at febo.com>
Message-ID: <4770BB12.403 at tx.rr.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Robert E. Martinson wrote:
> A connector on Ebay now, see: 250200168413.
>
> Kind of pricey with no backshell or screws.
>
>
> Bob
>
>
>
>

Thanks for the additional tip, Bob. Based on my post, I got hooked up
with a guy on the list that had one available.

Never the less, thanks again.

Mike





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