[Amps] RE: 4CX250B Screen Supplies
Bill Fuqua
wlfuqu00 at uky.edu
Fri Jul 23 09:28:23 EDT 2004
I disagree. In the two tone situation the screen current is fluctuating at
the difference frequency of the two frequencies. And if you should chose
the frequency difference to be the lowest audio frequency modulation used
(300 Hz usually) you will take in account the bypass capacitance reactance.
The IMD could be improved simply by having a very large AF bypass capacitor
having a very low reactance at a few hundred Hz.
73
Bill wa4lav
At 03:36 AM 7/23/2004 -0700, R.Measures wrote:
>Also, with a 2-tone test, it would seem not to matter whether the screen-V
>is regulated or unregulated since screen-I is constant and therefore
>screen-V would not vary unless the electric-mains V fluctuated.
>end
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