[Elecraft] high-power tuner

[Ian Kahn - Ham]

This probably shows my gross lack of knowledge of the physics involved 
here, but what does the weight of the tuner have to do with its efficiency?

73,

--Ian

Ian Kahn, KM4IK
Roswell, GA
km4ik.ian at gmail.com
K3 #281, P3 #688


On 3/9/2012 6:14 PM, Fred Jensen wrote:
> On 3/9/2012 2:24 PM, WILLIS COOKE wrote:
>
>> If you need a tuner, your
>> antenna does not meet this criteria so, what are you using to form
>> your opinion?
> Weigh the tuner, then transmit continuously, measure the temperature
> rise, and when it's stable, calculate the heat loss [something to do
> with Boltzman's Constant -- the tuner *is* painted black].  What doesn't
> leave as heat must leave as RF.  Did it years ago on a 10 KW FM
> broadcast transmitter [4 ea 4-1000's], and it came within one percent of
> the efficiency measured with the water-cooled dummy load.  YMMV however.
>
> 73,
>
> Fred K6DGW
> - Northern California Contest Club
> - CU in the 2012 Cal QSO Party 6-7 Oct 2012
> - www.cqp.org
>
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