Last week I bought a very clean 5370B, in near new condition (missing OCXO but
I have a spare one).
It has a HP tag on the top edge of the rear frame, under the top cover, which
says:
Date 12 09 97 5370A to 5370B by 28457
The serial number is 2116A01177. The front panel template is marked 5370B.
I understand that it was a 5370A factory upgraded to B, and I'm wondering if
such an upgrade might have
been requested by the customer (Digital in the case) and why, or the item was
a resurfaced old stock, just
sold after the upgrade.
Any idea?
Messaggio originale
Da: iov...@inwind.it
Data: 22/02/2010 20.47
A: time-nuts@febo.com
Ogg: Re: [time-nuts] OCXO info?
Yes, it is the R-1051 frequency standard, I have one. It was made by General
Dynamics, and was rated, if I recall, at 1x10E-8 per day.
See also this archive at
http://www.mail-archive.com/time-nuts@febo.com/msg02674.html
Antonio I8IOV
Messaggio originale
Da: li...@cq.nu
Data: 22/02/2010 18.17
A: Discussion of precise time and frequency measurementtime-n...@febo.
com
Ogg: Re: [time-nuts] OCXO info?
Hi
Assuming it's an R1051 standard you then have to know who made it. Some of
the later parts made by the replacement parts empire were of questionable
performance / reliability. The side with the markings likely would tell us a
lot.
Simple answer - when it's not Chinese New Year, the auction sites are full
of $20 OCXO's (including shipping) that will do a *lot* better. If you are
patient, you likely can get below $10. How they can do that with shipping is
a total mystery.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Arthur Dent
Sent: Monday, February 22, 2010 10:12 AM
To: time-nuts@febo.com
Subject: [time-nuts] OCXO info?
It looks like the 5Mhz frequency standard module from
a R-1051 receiver. You might find info on it here.
http://www.jamminpower.com/main/r1051.html
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