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[AMPS] Re:YC240/YC299

To: <amps@contesting.com>
Subject: [AMPS] Re:YC240/YC299
From: measures@vc.net (Rich Measures)
Date: Tue, 8 Dec 1998 06:15:23 -0800
>
>       Rich says
>
>       >> Interelectrode Capacitance est,CIN-17.6 pf,Count-0.08pf,
>       >>Cgp-9.7pf.????????????????????????????
>       >>
>       >>That Cout looks very wrong. Cgp in series with Cin gives a  Cout
>of >6.25pF.
>       >>
>       >For g-g config. it looks fairly typical.  
>
>       How come Rich?  

Because on recent, official, specifications sheets, some bozo has been 
switching the feedback C with the output C.  

>If Cgp is 9.7pF, and the grid is grounded, then Cp
>-ground = C plate - grid = 9.7pF = Cout. (plus strays from plate to ground)
>
Indeed..

Cheers, Peter


Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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