Hi
Rb standards have a finite life. Just how long that is depends a lot on how
good a job the heatsink on them did as well as the run time. They do die
of fairly normal random stuff as well. Like just about everything designed
in the last 30 years, schematics and field repair manuals simply
Hi,
About five years ago I purchased a rubidium standard on eBay. It was an
Efratom. Sadly although The oscillator was working but it wouldn't
lock. I was comparing it to a HP Z38001A which I use as the frequency
standard in my lab.
I tried to fix it, but I couldn't find the correct
Yes, that non-hermetic C3 is a wet-slug Ta cap. These are quite special
(and expensive), and can be amazingly good, or cause lots of grief if
they leak. The key is in the seal around the Ta positive lead, and how
well it holds up over time. Ultimately, the cap either loses its
necessary
Jared,
There is a non-hermetic electrolytic cap in the A7 (100uf C3) that if it
leaks can "eat" the lead or trace off killing the gain..
Pull the A7 and take a look at that.
Cheers,
Corby
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