[time-nuts] Noisy varactor diodes
David McGaw
n1hac at alum.dartmouth.org
Tue Dec 18 22:22:24 UTC 2012
I have tried to work with 4 Star Electronics. They only want to deal
with large quantity orders. I would be interested to hear if anyone
has had better luck.
David N1HAC
On 12/18/12 4:42 PM, John Miles wrote:
[1]www.octopart.com identifies 23 of them in stock at a reseller
called 4 Star Electronics. Bob's idea of trying a power-supply
rectifier sounds interesting, though. Failing that, an NTE
replacement part for AM radio tuning might work, perhaps in a
different series/parallel combination. Just curious, what was the
5065A acting like with the bad diode? Mine seems to run quietly for
days at a time, but then occasionally it generates excess low-level
random noise for a period of hours to days (see image). Every time
I've tried to get serious about tracking the problem down, it stops
misbehaving. Did yours look like this? It's especially annoying now
that I finally sprung for a second 5065A, which seems to behave
almost identically... -- john Miles Design LLC
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