[time-nuts] Oscilloquartz 2200 Clock / B-5400 Oscillator
jl.oneto at free.fr
Thu Jan 22 01:06:28 EST 2015
I have just uploaded to Didier Juges website the manual for the
Oscilloquartz 2200 with clock option 2205, complete with schematics.
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:
> 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?
> ----- 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:
>> 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.
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email: jl.oneto at free.fr
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