Skip,
Good pictures and yes the smoke did get out.
Can't tell on the bulb is it cracked pr blackened.
Other then that looks pretty repairable. Its interesting that they put a
resistor near the excitation coil. Is that a way of getting feedback for
oscillation??
Regards
Paul
WB8TSL

On Mon, Jun 13, 2016 at 6:32 PM, Skip Withrow <skip.with...@gmail.com>
wrote:

> Hello time-nuts,
>
> Well, broke out a PRS10 that I had put away for a project some time ago and
> upon power up found that it had issues.  Status indicated low lamp output
> and high lamp temperature.  Duh!  Upon removal of the lamp assembly it
> became abundantly clear that the magic smoke had gotten out.
>
> If I recall correctly, seems like there was another PRS10 with corrosion
> issues in the same area.  My guess is that the heat does not help this
> situation.  I suspect that I may have a full-on heater, which may have
> caused the tantalum cap (and possibly other) failures.
>
> Looks like this may be the weak spot in these oscillators.  I'm very
> hopeful that a rebuild will bring it back to life.
>
> Thought you would enjoy the pictures though.  Two are attached.
>
> Regards,
> Skip Withrow
>
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