[time-nuts] Oscilloquartz 2200 Clock / B-5400 Oscillator

[Jean-Louis Oneto]

Hello,
I have just uploaded to Didier Juges website the manual for the 
Oscilloquartz 2200 with clock option 2205, complete with schematics.
Best regards,
Jean-Louis


On 21/01/2015 13:43, Tom Van Baak wrote:
> Hi Adrian,
>
> I have a working Oscilloquartz B-5400. A copy of the data sheet is at:
>      http://leapsecond.com/museum/osa5400/1982-OSA-B-5400-ds.pdf
> but I do not have a manual for it.
>
> Did you happen to take some photos when you did the repair? I'd like to see the inside, but since mine is working I'm hesitant to open it and take a close look. Also, what is your measurement and reference, where you can measure to the low -13's?
>
> Thanks,
> /tvb
>
> ----- Original Message -----
> From: "Adrian" <rfnuts at arcor.de>
> To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
> Sent: Tuesday, January 20, 2015 2:32 PM
> Subject: [time-nuts] Oscilloquartz 2200 Clock / B-5400 Oscillator
>
>
>> I ran into a nice Oscilloquartz 2200 digital clock / precision crystal
>> oscillator from the early 80's that is in need of some care.
>>
>> Please let me know if you have any manuals / data sheets / catalog pages
>> or other information to share.
>>
>> At the moment I'm working on the faulty power supply. Any schematics,
>> also from a 2210 that appears to have the same PS would be very helpful.
>>
>> The 2200 houses a B-5400 high performance oscillator that has been
>> reported here:
>> http://tf.boulder.nist.gov/general/pdf/26.pdf
>>
>> Any other information, data sheets etc. would be nice.
>>
>> I tested the oscillator on an external power supply. After about a day
>> of continous operation it was obviously still running in, but first ADEV
>> mesurements pointed into the low E-13's.
>>
>> Unfortunetely, it stopped then drawing current, so I had to take it
>> apart. Out came a nice dewar-packaged cylindrical oscillator housing.
>> When I pulled it out, the heater windings unwound like an untied spring.
>> That will be a challenge to get nicely rewound but should be possible.
>> Any advice what glue to use for fixing them permanently on the housing
>> are welcome.
>> The culprit was a hermetic tantalum cap in the 10V reference circuit.
>>
>> Adrian
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>

-- 
Jean-Louis Oneto
email: jl.oneto at free.fr