[time-nuts] Lamp for FRK Rubidium Needed

paul swed paulswedb at gmail.com
Fri Jun 20 13:07:22 UTC 2014


Chuck is correct I have done this trick on FRS units. The glass clears and
the lamp re-ignites and continues to work for a long time. Actually it
hasn't failed and this must be 2 years now.
Regards
Paul
WB8TSL


On Fri, Jun 20, 2014 at 8:34 AM, Chuck Harris <cfharris at erols.com> wrote:

> Just in case you weren't aware, bad lamps can often be
> resurrected by the judicious application of heat.  The idea
> is to heat the bulb enough to evaporate all of the Rb
> that is deposited on the glass (making it black), and then
> let the lamp cool.   The Rb will again condense out on the
> glass, but this time it will condense out where the lamp
> is coolest, and will spare the rest of the bulb, allowing
> the light to get out.
>
> -Chuck Harris
>
>
>
> Doug Millar wrote:
>
>> Hi, Does anyone have a good Rb lamp available for an Efratom FRK?
>>
>>     Doug K6JEY  (drzarkof56 at yahoo.com)
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/
>> mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>>  _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>



More information about the Time-nuts_lists.febo.com mailing list