23-08-2012, 10:38 AM
In other words, Alan was expecting the power to half, rather than the voltage, when Zout=Zin 
I admit that when I first skimmed his post, I missed this too.
Alan, put an Avo across the input of the power amplifier, and adjust R until the voltage is half. The power reading will be a quarter of the original reading, not half.
All the best,
Mark
I admit that when I first skimmed his post, I missed this too.
Alan, put an Avo across the input of the power amplifier, and adjust R until the voltage is half. The power reading will be a quarter of the original reading, not half.
All the best,
Mark
