Hi That’s about the right price relative to the last time I bought any of them.
Bob > On Aug 2, 2015, at 10:33 AM, Mike Niven <mfni...@ymail.com> wrote: > > > Thanks Chuck and Bob for the further comments. I have actually had a reply > from Sematron. Seems that the lamps are still available at only £781.63 - > call it $1,100! Since that probably buys four Racal 9475s when they appear, > I think I might go the other route. I also think that the lazy approach > applies at present i.e. do nothing unless the unit packs up. Nobody else has > commented on whether the same bulb is used in other Efratom Rb sources, so I > will leave it there. Again, thanks for all your feedback. > > Mike > >> Friday, 31 July, 2015 20:02 Chuck Harris wrote: >> >> Hi Mike, >> >> That bulb was sealed with an oxy-fuel torch at the melting >> point of the glass. It was then annealed, starting at a much >> higher temperature than 150C before cooled slowly to avoid >> breaking. >> >> Heat it uniformly with your hot air gun until it is no longer >> black. Reducethe heat slowly to allow it to cool... or, you >> can toss it into a can full of white ashes from your fireplace. >> >> Or, leave it be and wait until it really fails before fixing >> it. >> >> -Chuck Harris > > _______________________________________________ > time-nuts mailing list -- time-nuts@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@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
