[time-nuts] Noisy varactor diodes
cdelect at juno.com
cdelect at juno.com
Tue Dec 18 18:29:58 UTC 2012
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
-------------- next part --------------
A non-text attachment was scrubbed...
Name: varactor.jpg
Type: image/jpeg
Size: 59586 bytes
Desc: not available
URL: <http://www.febo.com/pipermail/time-nuts/attachments/20121218/e4bd7213/attachment-0001.jpg>
More information about the time-nuts
mailing list