The Wenzel article mentions that care was taken to minimize power supply noise and HEATER NOISE. I had never considered the effect of the magnetic field from the heater winding coupling into the oscillator circuitry.
Fortunately (aka luckily), I had always wound my heater coils with 2 conductor thermocouple wire (the constantin conductor is quite resistive) and brought the return current back through the copper conductor just for convenience, oblivious to the field cancellation feature! Another example of being right for the wrong reason! -Mike- WA6ZTY At 07:12 AM 1/23/2008, you wrote: >Hello All-- > >I suppose that most on this list already know all about >this, but as a newbie to considerations about low noise >oscillators, I found the Wenzel, Inc article on design >notes for ultra-low noise oscillators interesting-- > >Just in case anyone on the list has not seen it: > >http://www.wenzel.com/pdffiles1/pdfs/RFDesign1.pdf > >Mike Baker >------------------------------- > >_______________________________________________ >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.
