[time-nuts] PRS10 rubidium lamp module failure

[Stewart Cobb]

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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