[Elecraft] high-power tuner

[Fred Jensen]

OK folks, I am really truly sorry I started this 
tuner-efficiency-by-measuring-its-heat thread.  I apologize.  It was 
sort of an e-nerd joke and I really miscalculated the laugh-factor in 
it, it seems there was none, an unfortunate failing for me ... but too 
common.  Boltzmann's Constant is in my HP48GX calculator, not that I 
actually know or care what to do with it at this point in my life.

It would be hugely difficult to get any sort of accuracy in a 
measurement of the heat lost in a tuner to find its efficiency, I never 
meant it to be real or even close to reality.

Again, I'm sorry to have been joking around on a serious list.  Won't do 
it again.  Please, everyone, use what works, have fun, enjoy the hobby 
with the great E-gear.  My KPA500 is heating the room far more than my 
MFJ989C.  If you can make QSO's, it works.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

On 3/10/2012 4:56 PM, Fred Townsend wrote:
> Ron, Rick, Erik: There are many reasons why temperature measurements are a
> poor way of evaluating a tuner. There is a method of power measure based on
> temperature rise. It's called a bolometer.  It only works well if the mass
> involved is small. Wiki bolometers if you want the details.