I've recently bought a Vectron 229-9268 100MHz crystal oscillator via
Ebay with no information other than it was supposed to have been removed from
an item of Racal radio equipment several years ago.
It has an SMA RF connector and a 7 pin circular power connector, much in
the style of a
Kovar is a glass seal, much like a tube base :-), so that's sorted. The
voltage is as you point out another problem. The presence of the Kovar
seal suggests that the unit is nicely sealed up, not to be opened. Do
you know what the waveform or power level should be on the output?
Don
Hi Don
Thanks for the reply, the can itself is certainly soldered shut but whether
or not the base is intended to be fully sealed or just to provide
insulation around the pins I'm not sure, given that the can seal is probably
breached anyway by the nut fixed SMA socket.
I've been
Hi Nigel,
I don't have any specific info on your oscillator. If I was doing it,
I'd investigate the oscillator and oven seperately.
Power just the oscillator and monitor the output while you slowly raise
the voltage from zero. Once the output appears, watch the amplitude as
you increase
Hi Ed
Thanks very much for your suggestions, it had occured to me that it should
be possible to run the oscillator without the oven and if I don't find any
specific information as to actual supply voltages I'll give your
suggestion a try.
That's a great idea re the oven too, followed
Whatever you do, don't apply power to the pins indicated as VCXO
Supply. I'm pretty sure that is the internal regulated supply that's
accessible only to connect a pot so that you can remotely trim the
frequency - if it has the feature, including a varicap diode in the
oscillator. One end of
Have you tried contacting Vectron International?
http://www.vectron.com/contact/index.htm
Several years ago I gathered a sizable quantity of various precision surplus
OCXOs of Vectron manufacture for a feasibility demo on a client project. A
phone call and I was into the engineering
