[time-nuts] PRS10 rubidium lamp module failure

Vasco Soares vesoares at deea.isel.ipl.pt
Mon May 9 23:13:18 UTC 2016


Hi,

I had the same problem a few years ago. What kind of advice are your 
searching for to that "usual" failure?

Regards,
VS

----- Original Message ----- 
From: "Stewart Cobb" <stewart.cobb at gmail.com>
To: <time-nuts at febo.com>
Sent: Monday, May 09, 2016 11:47 PM
Subject: [time-nuts] PRS10 rubidium lamp module failure


> R901, on the far right, is shown on the schematic as "air heater". It
> apparently got hot enough to create a localized thermal runaway in its 
> lead
> wire. There was ample evidence of arcing. A half-melted bit of wire fell
> away before I could take the picture.  Without that heater working, the
> lamp is apparently too cold to start.
>
> Cheers!
> --Stu
>


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