Original poster: Thomas <tom-at-pwrcom-dot-com.au> > Original poster: Robert Schiemann <bobbyrj3d-at-yahoo-dot-com> > > Hello List, > > Tonight I set up my new 23 AWG, 41 inch long, 4.5 inch > OD coil. I... Congratulations. Is there any reason you went with a height:diameter ratio of 9:1 instead of the usual 4:1 to 6:1? This could be limiting your output slightly. Tom L.