.)
From: Bob Camp
To: Discussion of precise time and frequency measurement
Sent: Sun, March 7, 2010 8:05:25 AM
Subject: Re: [time-nuts] Advice on TRACOR 527E
Hi
On the site - also grab the 527A manual. It's the one with the schematics in
it. It also has a complete listing o
Nigel,
many thanks!
That post came just handy.
I bought a cheap 527A recently that was supposed to 'need some
cleaning'. Unfortunately, the seller threw it in a large box without any
padding, so one of the front handles broke off through transit.
Nevertheless, the unit appears to 'live' but I
other meters.
> Robert G8RPI.
>
> --- On Sun, 7/3/10, Bob Camp wrote:
>
> From: Bob Camp
> Subject: Re: [time-nuts] Advice on TRACOR 527E
> To: "Discussion of precise time and frequency measurement"
>
> Date: Sunday, 7 March, 2010, 19:37
>
> Hi
>
> As
therefore used as a transfer
standard from NIST's microbolometers to other meters.
Robert G8RPI.
--- On Sun, 7/3/10, Bob Camp wrote:
From: Bob Camp
Subject: Re: [time-nuts] Advice on TRACOR 527E
To: "Discussion of precise time and frequency measurement"
Date: Sunday, 7 March, 201
Hi
As far as I can see, there were very few real changes in the 527 from it's
birth through the final model. I'm amazed they still could get enough 1960's
vintage parts to keep building the same design 30 years later.
Bob
On Mar 7, 2010, at 1:22 PM, J. Forster wrote:
> I was looking for doc
I was looking for doc on the 527 a few months ago and finally got to the
guy at Tracor who knew about it. He poinbted me to this guy:
Roland Becton
Becton Enterprises
Austin, Tx
512 251 1460
becton@att.net
who currently supports the units, as much as anybody still supports them.
I was looki
At 16.19 07/03/2010, you wrote:
...
Tracor Instruments Austin changes name to Tremetrics
...
Thanks for info! So my 527E is newer than Tracor units :-)
Marco IK1ODO
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.
In a message dated 07/03/2010 14:54:40 GMT Standard Time,
ik1...@spin-it.com writes:
Who was Tremetrics?
Austin Business Journal | September 10, 1990
Tracor Instruments Austin changes name to Tremetrics
Tracor Instruments Inc., formerly a division of Tracor In
Hi
The 527A schematics are on the same site mentioned in the second post in this
string. (ko4bb in the manuals area, under misc test equipment).
The schematics can be a bit hard to figure out. The manual for mine goes into
great detail about the standard "built in scope" complete with schemati
I have a Tracor 527E, but marked as Tremetrics 527E. Who was Tremetrics?
Then I have a Tracor 547A, basically the same as 527E, but it has no
phase meter, and the frequency offset display is digital (an old 3
1/2 digit volmeter module, with the LSD masked :-))
Anyone has schematics for the 547A?
Hi
There's a tradeoff in the front end circuit between 100 KHz and 10 MHz inputs.
If you do not plan to use 100 KHz, you can tweak the input to do a bit better
at 10 MHz.
For both frequencies, "tuning" the multivibrators to run at the correct free
run frequency can help noise issues.
Bob
O
At 14.05 07/03/2010, Bob Camp wrote:
One thing you will run into on the 527 - They originally came out in
the era of 5 MHz standards. The specs on the boxes only list
100KHz, 1 MHz, and 5 MHz as valid inputs. In reality, they will
accept anything that's an integer sub-multiple of 5 MHz as an
Hi
On the site - also grab the 527A manual. It's the one with the schematics in
it. It also has a complete listing of the FSCM numbers as of 1967. Useful for
figuring out "who made that" questions when repairing military surplus gear
.
One thing you will run into on the 527 - They original
Thank you so much for all replies.
Good reading for this sunday.
73, Olivier F6HGQ
Le 7 mars 10 à 12:05, gandal...@aol.com a écrit :
In a message dated 07/03/2010 10:17:54 GMT Standard Time, f6...@wanadoo.fr
writes:
Could not locate any O&M manual on the web for this equipement
can someb
At 11.17 07/03/2010, you wrote:
Hi,
Could you advice me about the ''TRACOR 527E Frequency difference
meter''
I have two of them. Very nice item to do a quick frequency
calibration between oscillators.
I feed it from an HP GPSDO, and it quickly tells the frequency
difference in parts to 10^1
In a message dated 07/03/2010 10:17:54 GMT Standard Time, f6...@wanadoo.fr
writes:
Could not locate any O&M manual on the web for this equipement
can somebody help ?
-
Once again Didier saves the day:-).
_http://www.ko4bb.com/cgi-bin/manuals.pl?dir=09%29_Misc_Test_Equipme
Hi,
Could you advice me about the ''TRACOR 527E Frequency difference
meter''
Might be a cheaper solution than HP equipment as to compare 2 clocks .
Could not locate any O&M manual on the web for this equipement
can somebody help ?
73, Olivier F6HGQ
17 matches
Mail list logo
