[Elecraft] high-power tuner

[Bill K9YEQ]

Fred,

I would not apologize. I have enjoyed the thread which is about dead anyway.


73,
Bill
K9YEQ


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Fred Jensen
Sent: Saturday, March 10, 2012 8:17 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] high-power tuner

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.


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