[Lowfer] New bench testing of PA output filter

[Bill Ashlock]

Mike,

>Is it possible that the current probe is measuring the harmonics as >well 
>as the fundamental frequency and showing them in the readings???

Not a bad idea but I'm getting confirmation of the loop current meter 
reading on the Tek current probe. Also, the loop current waveform appears on 
the scope to be so darn close to a perfect sine wave that I suspect the 
harmonic content is well under 1%. I think this correct because a Q of 200 
implies a 200X multiplication of the fundamental of the square wave so it's 
more like 1/200 x 1/3 = 1/600 or 0.16% for the 3rd harmonic.

Bill

_________________________________________________________________
MSN Photos is the easiest way to share and print your photos: 
http://photos.msn.com/support/worldwide.aspx