Dear Paul,
On 12/02/11 21:34, paul swed wrote:
Hello to the group
Finally received the heat gun this week and attempted to recover a FRS c Rb
lamp.
In the bad lamp you can actually see a small silver blob and on closer
inspection the center of the bulb front has a small circle of something.
When heated by the normal oven at 177 degrees F the silver blob will move
around. The center dark area does not.
I wonder if this dark center is attenuating the Rb light.
I bet it is a thin layer of Rb... so yes.
Do not really want to take the temperature higher. Magnus could remove his
Rb capsule. The FRS lamp is glued in and I can not get it out.
My concern is that the surrounding electronics might literally get fried.
(Suppose it doesn't matter)
Magnus any idea how hot you may have run your lamp to get the stuff to boil
off and how long at that temperature?
I did not measure the temperature, but I was able to heat it up fairly
quickly with my small heat-gun, despite the fact that the removal tool
was cooling it off... maybe I was heating it for 5 min or so... but I
was able to have the dark shade evaporating.
In order to prove there is more light I will need to do a lot of re-assembly
to get the system to the lamp detection stage so I can measure it. The
voltage had been 1.83 volts before it simply would not work. So anything
above that would make all this worth while.
It is well worth the effort, but the ability to heat it may vary.
Cheers,
Magnus
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