[time-nuts] Re: Vectron 380 teardown

[Attila Kinali]

On Fri, 14 Jan 2022 21:20:03 +0100
Attila Kinali <attila at kinali.ch> wrote:


> Then I looked at the Datasheet [1] (ok appnote) and guess what,
> that's no mere oscillator. That's a bona-fide OCXO. Vacuum packaged,
> nonetheless! Sure, it doesn't have the best stability compared to
> other OCXO, but compared to other DIL-14 sized OCXO, it's actually
> quite good. And it's only the size of a regular XO too!
> And this also explains the need for ceramic: an FR4 PCB would$
> have too much outgasing that would then lead to drift.

Some additional info can be found in 
https://patents.google.com/patent/US5917272
and 
https://patents.google.com/patent/US6731180

It looks like the device follows more closely the latter
patent than the former. 

			Attila Kinali

-- 
The driving force behind research is the question: "Why?"
There are things we don't understand and things we always 
wonder about. And that's why we do research.
		-- Kobayashi Makoto