Good find on the diodes and as you say at least worth the try. Will bet they are 10 x less expensive then americanmicrosemi. But I will say in a pinch they bailed me out. :-) Tunnel diode for a TDR. Regards Paul.
On Tue, Dec 18, 2012 at 2:55 PM, Brooke Clarke <[email protected]> wrote: > Hi Corby: > > Did you measure the reverse leakage current on the good and noisy diodes? > > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.**end2partygovernment.com/**2012Issues.html<http://www.end2partygovernment.com/2012Issues.html> > > [email protected] wrote: > >> I was recently repairing a noisy A3 module for an HP 5065A. >> >> The phase modulator has 4 varactor diodes in parallel. >> >> Since I suspected a diode, I removed them one at a time. >> >> Of course it was the last one! Must be a universal rule there! >> >> Anyway here is a PIX of the noise with the diode reverse biased at 20 >> volts. >> >> >> Anybody know where to get an MV840 ??? >> >> Thanks, >> >> Corby >> >> >> ______________________________**_________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<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<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.
