On 01/22/2011 04:19 AM, paul swed wrote:
Actually there is a paper by Arthur Molenkamp (Spelling wrong) thats quite
detailed and he seems to have done the same thing I am. You do not need the
heater to start the RB lamp.
I have found 2 things this evening on the FRS-c.
The oscillator is intermittent and I might guess its the variable tuning
cap. Boy is that going to be a pain to pull. But bias voltages and xsistor
behavior look good.
Other item
Indeed there is a silver dot about 1-2mm in the Rb lamp capsule. I might
guess this is Magnus's RB that he reheated. I need to peel the glass/mica
cover off and believe the ampule is released from its holder by breaking the
epoxy that holds it. Really dislike that idea.
Magnus might the mica cover be removed and the capsule heated in place? The
surrounding area seems to be teflon.
Mine was sitting in a metal holder with some white soft material in
between that I didn't identify. Since it needs to handle the temperature
of 108 degrees over long time I figured that it would survive my
operation so I never bothered to pull the glass ampoule out of that grip
since it was not coming loose easily. I haven't been inside a FRS-C so I
don't know it looks. Recall that it is not very high temperatures which
is needed.
Cheers,
Magnus
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