The discussion about tuning would not happen if we all still used
o'scopes with a
trapezoid pattern. On such a pattern you can clearly see "flat topping"
when the output
loading cap is too tight, a slight reduction in capacity results in a
clear, sharp point
at the end of the triangle.
Additional tuning just upsets the whole thing. While an out put meter
might again
see a small increase in power, the additional 10-20 watts won't make a
difference,
but the splatter from your flat topping amplifier will.
The aforementioned 5% change in output loading is a good rule of thumb,
lacking
a 'scope
Merry Christmas to all!
ed K0KL
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|