[time-nuts] OCXO Vectron 218Y44442
neg.number at gmail.com
Mon Oct 16 23:51:12 UTC 2017
Oscillators need a little noise to start up. Usually there's plenty in
almost any circuit, but if you're running cold, or voltage is a little
low, you might not have enough to start.
The mechanical impulse adds noise (crystal = piezoelectric) to the
feedback loop; apparently enough to get it started.
Might be that your power supply is running a bit low, and you don't have
*quite* enough gain to start.
On 10/16/2017 4:10 PM, Vlad wrote:
> I am wandering if anybody observe the behavior for OCXO, when its stop
> to reproduce the signal, and the only way to return it back to business
> is little mechanical stress.
> I have TWO of such OCXO. One of them is Austron 11.2 Mhz. And another
> one is Vectron model 218Y4442 9.8304Mhz
> In case with Vectron, I even disassemble it (to whom who brave here is a
> Then as I connect it to the PS, I realize it start to reproduce the
> signal again ! Before this it was nothing ! I tried different PS before
> to open this "can" as a last resort.
> For the Austron - I didn't disassemble it. Instead I just kick it a
> little bit. And immediately after that, it start to produce the signal !
More information about the Time-nuts_lists.febo.com