[time-nuts] Re: HP 5065A, no 2nd harmonic.

[Jared Cabot]

Hi,
Your help is appreciated. We can keep this on-list for now I guess, on the chance it helps someone in the future.

Jared.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Friday, November 19th, 2021 at 08:25, paul swed <paulswedb at gmail.com> wrote:

> Jared I would be happy to see if I can help remotely. We may want to take this offline or not. Others may find it interesting.
> Regards
> Paul
> WB8TSL
> 

> On Thu, Nov 18, 2021 at 12:56 PM Jared Cabot via time-nuts <time-nuts at lists.febo.com> wrote:
> 

> > Hi all,
> > 

> > I have a 5065A Rubidium Standard that was working ok, but has lost the 2nd harmonic.
> > My voltages are all ok, the physics package hasn't overheated and I have replaced the usual resistors on the lamp assembly (and it was running fine afterward for a while), the lamp illuminates, and I've done the procedure to remove cell flooding.
> > All readings on the 'circuit check' switch are nominal, apart from the 2nd harmonic position. No matter what I do, I can no longer get it to raise above 0.
> > However, when I first turn the unit on, the needle drops to 0 and flicks a little before settling on 0 and staying there.
> > 

> > Can someone help me get this unit up and running again?
> > 

> > Thanks!
> > Jared_______________________________________________
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