Paul we need to talk about 405 many things happening. I will be out from 11 till 3 otherwise at home. Bert In a message dated 6/18/2014 10:41:32 P.M. Eastern Daylight Time, paulsw...@gmail.com writes:
Bert just finding out that google mail is treating your emails as spam! Not sure if the message appears but as you can see it questions who you are. I found numbers of missing emails a few minutes ago. Regards Paul WB8TSL On Thu, May 22, 2014 at 7:59 AM, <ewkeh...@aol.com> wrote: > This may be off topic but I did check with Tom and many time nuts may have > HP E3610A power supplies on their bench and mine smoked a ublox GPS so that > makes it topic related.. > The reference section has some 1 uF 50V capacitors and in my unit one > shorted. The reference section has fuses on the board but they did not > open. The > 7912 overheated and shorted out, traces are discolored the op amp shows > signs of overheating and burned out. The result was the output went to > 30V+ > and next morning the ublox chip plastic showed where the chip smoked. As > a minimum I recommend replacing the 1 uF capacitors with new quality caps, > I also ordered 15 V 5 W zeners and 0.5 A 20 mm glass fuses. > Bert Kehren > _______________________________________________ > 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. _______________________________________________ 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.