[time-nuts] Noisy varactor diodes

[cdelect at juno.com]

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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