[time-nuts] Quad Driven Mixer 5 to 10 MHz Doubler Atricle

2014-11-12 Thread John C. Roos via time-nuts
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

Re: [time-nuts] Quad Driven Mixer 5 to 10 MHz Doubler Atricle

2014-11-12 Thread John C. Roos via time-nuts
I mentioned my article because it is a useful technique. The major virtues are that it is analog, thus possibly a lot less noise than an XOR, it is easy, and the fundamental and all of the odd harmonics are well suppressed. I make no claim that it is better or cheaper, or is a prettier color

[time-nuts] 5 to 10 MHz Qrad Driven Mixer Doubler

2014-11-10 Thread John C. Roos via time-nuts
A linear 5 to 10 MHz doubler that may be of interest is described in the March-April 2011 issue of QEX. I use it to double the output of an Vectron double oven 5 MHz standard to 10 MHz. Extensive design and performance data is provided for the basic breadboard, a PC version of the breadboard and a

[time-nuts] AOL Email Issues

2014-11-04 Thread John C. Roos via time-nuts
Yep - got a bounce notice today. Did not send anything I believe. Why must this be so hard? Would there be some huge cost involved in getting a more forgiving server setup that does not throw out all but the most primitive text. The FMT-nuts is a good example of something that works well and

Re: [time-nuts] locking oscillators - an increase in power and/or stability ?

2014-10-11 Thread John C. Roos via time-nuts
Perhaps this is useful Microwave oscillators will change in both power output and frequency as a function of the load impedance. This was first used to characterize magnetrons and klystrons. When plotted on a Smith Chart it is called a Rieke Diagram. I later used it with Gunn Diodes. You

Re: [time-nuts] MAILING LIST STATUS REPORT

2014-09-19 Thread John C. Roos via time-nuts
Hello All, This is a test message from johncr...@aol.com. Hopefully there is cause for joy and celebration -73 john k6iql ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts