MRF315 should also work Bert Kehren In a message dated 2/16/2011 5:37:49 P.M. Eastern Standard Time, [email protected] writes:
Interestingly it was not your normal tin whisker (I have seen a few of those, just..) it was a substantial one that had grown out from the stack of 2 Ceramic caps in series with the coil to the RF choke in series with the DC supply to the lamp housing. It might even have been a solder blob left over from production but it looked quite crystalline. It's a bit ugly in the lamp assy because the heat and strong RF field made a bit of a mess of insulation on the RFC and the heater leads but everything else seems ok I'll try and locate an MRF134 and see how I get on, certainly worth the price and time by the sounds of it. thanks for all the help and encouragement On 16/02/2011 22:14, Pete Lancashire wrote: > http://nepp.nasa.gov/whisker/ > > I've fixed two cell phones for friends and I have a very nice MP3 > player I got for $1. > > Each was fixed with a stiff brush with a combination of compressed air > (outside) and > a vac inside. > > -pete > > PS if you do the air thing don't forget about static use a ionizer. > > > > On Wed, Feb 16, 2011 at 1:58 PM, Bob Camp<[email protected]> wrote: >> Hi >> >> Real solder has lead in it to eliminate tin whiskers. >> >> We're going to see a lot of stuff die in the coming years from these little >> critters. >> >> Bob >> >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On >> Behalf Of Magnus Danielson >> Sent: Wednesday, February 16, 2011 4:55 PM >> To: [email protected] >> Subject: Re: [time-nuts] SRS PRS10 problem >> >> On 02/16/2011 10:31 PM, paul swed wrote: >>> Well a couple answers. >>> If those are RB whiskers try the heat gun at 300 degrees on it for 15 >>> minutes. As Magnus suggests and I just tried for the first time. It >> actually >>> worked and I recovered the rb lamp. >> >> While the heat gun on the Rb lamp is a nice trick, the whiskers most >> likely is nothing but traditional tin whiskers. A bit of re-soldering to >> remove bad metal and replacement of burned transistor is where I would >> start. >> >> Cheers, >> Magnus >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. -- 73 Brendan EI6IZ _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
