[time-nuts] Re: Pendulum 2804 Master Clock. Anyone that can provide documentation?

[Lisa Perdue]

Hi Ulf,

I have the user manual for the 2804. I've put it in my OneDrive for you to
get here:

https://1drv.ms/b/s!AjsuQF29x5gy3GH2rcG5cv50DwAi?e=k3KWA2

Also the 1804 manual is here, in case anyone is looking for that.

https://1drv.ms/b/s!AjsuQF29x5gy3GAhWEKBPvO8VEKI?e=FBhlOC

Let me know if you have a problem accessing it and I can email it to you
outside of the list.

Lisa


On Sun, May 28, 2023 at 4:47 PM Ulf Kylenfall via time-nuts <
time-nuts at lists.febo.com> wrote:

>
> Greetings,
> Picked up a Pendulum 2804 (Possibly -B)  Master Clock at a flea market.
> Fault indicated on a label: Locks randomly at any frequency 10 MHz +/- 5
> Hz.
> Suspecting either OCXO or driving circuitry as the GPS data presented
> seems OK.
> I have not been able to find any information whatsoever on the internet.
> Pendulum has been owned by swedish an polish entreprenours althoughit
> seems that this instrument i manufactured by Pendulum UK as thereis a label
> inside with a +44 country code telephone number.
> The OCXO is a RAKONCFPO-D03 51B S12 - Found data sheet for this type.
> I suspect that the OCXO may be faulty as it right now, after warm-up is
> at9.999.995.78 Hz, but without being able to tell what the links on the
> PCBdoes or a schematic diagram it will be a bit difficult to find the fault.
> Any one that has a manual in .PDF willing to share it?
> Best Regards
> Ulf KylenfallSM6GXV
>
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-- 
Lisa Perdue