Thanks, Dave. That's amazing, and I won't argue anymore, even though I didn't (and probably won't) check your figures.
I would have thought that the carbon sphere would have a MUCH greater resistance than .003 ohms. 73, Mike www.w0btu.com On Fri, Jul 27, 2012 at 3:42 PM, DAVID CUTHBERT <telegraph...@gmail.com>wrote: > A ... one inch sphere about 3 m ohms. ... The observe heats 43 deg C > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK