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[Amps] Measurement of C1 (=C+ strays) in amp PI filter circuit ...

To: <amps@contesting.com>
Subject: [Amps] Measurement of C1 (=C+ strays) in amp PI filter circuit ...
From: "BEHIELS JEAN-PIERRE" <ON4AEF@base.be>
Date: Sun, 3 Apr 2011 11:32:54 +0200
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Hi;

Question : Optimizing the minimum capacitance of the input of a PI filter 
circuit including available stray capacicitys.

I have to now what the minimum capacitance is,of the input circuit of a 
homebrewed amplifier PI-filter system.
Can I measure this value with the vacuum capacitor already mounted and 
connected on his place into the input of a PI-circuit.
Meaning is to now what my obtained minimum capacity is of my builded PI-filter 
inclusif the obtained strays in the RF case.
It is even possible that I can not reach the PI-filter calculated minimum C 
values from the PI tables for the 28 Mhz band !!!!
Maby my strays togehter with the minimum value of my input vacuum C is to high 
to obtain resonance at higher bands ?
   
I look forward es 73's Jean ON4AEF.
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