AW: [time-nuts] Re:FTS 5030 cesium frequency standard

[Hubert v. Bonhorst]

Bill,
I'm still searching for info on FTS 5030. I just need to know the resistance
of the oven thermistor at operating temperature. I have the special adapters
to mechanical fit the tube into an 5061 and adapt the 5061 microwave assy.
That makes me quite confident, to revive the 5061A with this tube.

Hubert 

-----Ursprüngliche Nachricht-----
Von: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] Im
Auftrag von Bill Hawkins
Gesendet: Donnerstag, 9. Dezember 2004 07:46
An: Discussion of precise time and frequency measurement
Betreff: RE: [time-nuts] Re:FTS 5030 cesium frequency standard

Hubert,

What happened with the project to revive a 5061A with a 5030
physics package?

Bill Hawkins


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
Behalf Of Hubert v. Bonhorst
Sent: Sunday, November 28, 2004 1:34 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Re:FTS 5030 cesium frequency standard


Thank you for your effort. The 5061A is not my problem. I' m in need for the
5030 diagrams. These are a real problem to find. My major problem is to know
the resistance of the heater thermistor at temperature. I do not know a
method to find this value, exept knowing the setresistor of the 5030.
Best regards,
Hubert
DB7ME
----- Original Message -----
From: "David G. Andersen" <dga at lcs.mit.edu>
To: "Discussion of precise time and frequency measurement"
<time-nuts at febo.com>
Sent: Saturday, November 27, 2004 7:48 PM
Subject: Re: [time-nuts] Re:FTS 5030 cesium frequency standard


> On Sat, Nov 27, 2004 at 06:32:46PM +0100, Hubert v. Bonhorst scribed:
>> Some time ago I bought a 5030 module for parts. Now I want to use the
>> cesiumbeamtube for a very weak HP 5061A.
>> I' m looking either for a web link to download the servicemanual or just
>> for some information where Cesium oven temp.
>> is set. A diagramm of the power supply and the board located directly at
>> the tube would be very helpful. Might be someone from the list could
>> help.
>
> I have the 5061A operations and service manual online at
>
>  http://eep.lcs.mit.edu/time/5061/5061A_ops_and_schematics.pdf
>
> It's a scanned PDF of the manual, and is kind of large (16M).  The cesium
> oven controller is on page 7-45 (96 in the pdf).
>
>  -Dave
>
> --
> work: dga at lcs.mit.edu                          me:  dga at pobox.com
>      MIT Laboratory for Computer Science           http://www.angio.net/
>
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