[time-nuts] Noisy varactor diodes

[Brooke Clarke]

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

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
> volts.
>
> Anybody know where to get an MV840 ???
>
> Thanks,
>
> Corby
>
>
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