[time-nuts] Noisy varactor diodes
brooke at pacific.net
Tue Dec 18 19:55:34 UTC 2012
Did you measure the reverse leakage current on the good and noisy diodes?
cdelect at juno.com 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
> Anybody know where to get an MV840 ???
> 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