Hello Jim, Yes i need a VCXO or even a VCTCXO. However when I search them on ebay, unfortunately, since they included every term for XO, I am lost in the noise.
Any recomendations for buying VCXO's that are surplus, and not ebay? Thank you very much, Can On Mon, Oct 5, 2015 at 11:48 PM, Jim Harman <[email protected]> wrote: > Only the first oscillator in your list is voltage controllable (VC). If you > want to steer it with a GPS as we have been discussing, it needs to be > voltage controllable. > > You will also want to consider the mounting and whether you are able to > solder surface mount devices like the second one in your list. > > You will also need to consider what power supply voltage(s) you have > available and whether you want sine or TTL output voltage. > > These parameters will narrow your selection considerably. > > Also if you have the power available you will get much better stability if > the oscillator has an oven (OCXO) Pretty good surplus OCXOs are available > for less than $25.00. With an OCXO you might also look for one that has a > reference voltage output. If you can use this voltage to power the analog > part of your tuning circuitry, you won't have to worry about the effect of > power supply stability on that portion of your system. > > The stability of any surplus oscillator is pretty much a crap shoot. You > can get them cheap but you might have to sort through a few to find one > that is good enough for your purposes.. > > > > On Mon, Oct 5, 2015 at 8:22 AM, Can Altineller <[email protected]> > wrote: > > > Hello, > > > > I am want to buy some VCXO's but really simple and cheap ones. I > requested > > a quote from goledge.com and their prices are around 180GBP per unit, > and > > I > > dont want to pay that much given you can buy a rubidium standard for > > comparable prices. > > > > I looked on ebay and found those candidates: > > > > > > > http://www.ebay.com/itm/12-8MHz-NKG3001B-VC-TCXO-DIP-NDK-New-x2pcs-Oscillator-VCTCXO-VCXO-TCXO-GPSDO/310376642284?_trksid=p2045573.c100033.m2042&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D32831%26meid%3D822a498fde5a4f19b8d5909a2b8496c5%26pid%3D100033%26rk%3D1%26rkt%3D3%26sd%3D310376642284 > > > > > > > http://www.ebay.com/itm/3-PCS-TCXO-6663-12-8-TCXO-25-4-x-29-21-x-10-03-SMT-VECTRON-INTERNATIONAL-/221657383361?hash=item339bcf41c1 > > > > > > > http://www.ebay.com/itm/Free-shipping-ONE-PIECE-PRECISION-0-3ppm-12-8MHz-12-8M-DIP-TCXO-/141771669896?hash=item2102400188 > > > > The third one is nice, it says 0.3ppm, but I am not sure if the specs are > > true. > > > > Any recomendations on where to source cheap vcxo or vctcxo's? 10mhz or > 12.8 > > mhz is ok, and <1ppm would be nice. > > > > Best regards, > > C.A. > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > > > -- > > --Jim Harman > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
