Re: Variable power control


Here is a pot controled version of my original zener power control. since i am an anti-rail go i added high limit and lo limit resistors. 
when i was young i persued a second class commercial operators license. in the log everyday the on air guy had to write down plate voltage and current. those 2 multiplie provided the FCC required station wattage. that was at the transmitter  so swr, connector, and line loss were not factored. P=I x E. this was not the RF OUT or the effective radiated power.  
i will be adding a simple accuate circuit add on to this to report voltage and current supplied to the output stage using 2 analog inputs to my system health display.
dave N4LKN

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