It's interesting. I took the hint, and tried sin(a)*sin(b) expand and set b=a+pi/2. fun fun fun. All that's needed in theory is a mixer and a pi/2 phase shifter at 5 MHz. Probably a bunch of other stuff because of real parts :-) Minicircuits will sell you one, packaged, for about 50 rasbucknicks. Don
Dave M > I am able to download the files associated with the article, but not the > article itself. Guess I need to be a paying member to get the article. The > only files in the download are the XLS file for calculating the filter > values, and the parts list. > > It's at http://www.arrl.org/qexfiles in the year 2011 listings, filename > 3x11_Roos.zip > titled "Converting a Vintage 5 MHz Frequency Standard to 10 MHz with a Low > Spurious Frequency Doubler" > > Dave M > > John C. Roos via time-nuts wrote: >> Several list members contacted me expressing interest in the >> article. None of them were able to download much or anything >> from the ARRL QEX web site. That includes me and other ARRL members. >> I am working the issue with one call to ARRL so far today. I will >> contact Larry Wolfgang at ARRL and see what Ican bust loose. So >> hang in there. It is a cute technique, not originated by me, but >> useful. Right now I have to get the ARRL FMT done first. >> -73 john c roos k6iql > > > _______________________________________________ > 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. > > -- "The power of accurate observation is commonly called cynicism by those who have not got it." -George Bernard Shaw Dr. Don Latham AJ7LL Six Mile Systems LLC 17850 Six Mile Road Huson, MT, 59846 mail: POBox 404 Frenchtown MT 59834-0404 VOX 406-626-4304 Skype: buffler2 www.lightningforensics.com www.sixmilesystems.com _______________________________________________ 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.
