Vectron crystal oscillator

[Phil]

Dear all

At a hamfest on Sunday, I acquired the following useful device (hopefully, for a frequency transverter for a cheap SDR dongle):



The problem is, naturally, that I can’t find any data for it (it’s a Vectron 275-9509). As you can see, apart from the RF output and four mounting posts, there are three connection points. One is clearly soldered to the case. I assume that the other two are (a) power (what voltage? 5V, perhaps?) and (b) buffered output for a frequency meter? Connection for a filter capacitor? I dunno.

If anyone more knowledgeable than I can provide helpful information, or even an educated guess, I would be most grapefruit. Otherwise, I may be reduced to trying to contact Vectron.

Thanks,

Phil M1GWZ

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