Luciano, Great they are 10.7 MC IF xformers then. Thanks On Mon, Dec 27, 2010 at 11:09 AM, Paramithiotti, Luciano Paolo S < [email protected]> wrote:
> > Hi Stan,Alan, > > ++++++++++++++++++ > Could you suggest a part number/source for the T2, T3, T4 10.7 MHz IF > transformers ? > +++++++++++++++++ > R: I have a little stock at home for my use. > There is a seller http://www.rfmicrowave.it/catalogue.php?lang=ita have > the green type I think is usable. The part nr is: "B-10.7-B-10-Verde" but I > suggest you to ask to a local RF parts distributors. These transformers are > used in FM radio. > ++++++++++++++++++++++++ > I am concerned that a narrow 10MHz filter might give significant phase > shifts (the YCL is a LP) is this likely to be a problem?? > ++++++++++++++++++++++++ > R: If you think the filter is a problem for the phase stability you can > remove it, but the harmonics and fundamental will be high. I remember the > frequency distributor HP5087A use tuned amplifiers inside. The Racal 1992 TI > counter use a 5MHz oscillator and an active doubler inside with LC band pass > filter and ALC. > ++++++++++++++++++++++++ > Hi I have just broken up an old 10-Base-T 16 ay switch and recovered 16 DIL > filter/isolating transformers ( identified as a 10F434 from YCL) ....and the > spec an pin-out was still available on the YCL web site.....worth a look for > 10MHz distribution?? > ++++++++++++++++++++++++ > R: I have not experience with this kind of transformers,I think the > separation between the channels is very important (trigger level stability > when we will measure it)), so I am preparing an active frequency doubler > with high separation between the 3 outpus. The circuit use separate > elements and will take particular attention to the ground loops. I will > email it to the Web when will be terminated.I use the core described as T1 > in the doubler. > > Thanks, > Luciano > _______________________________________________ > 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.
