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[Amps] SB-220 C-21 question

To: <amps@contesting.com>
Subject: [Amps] SB-220 C-21 question
From: 2 at vc.net (2)
Date: Mon Apr 14 12:51:43 2003

>[Encoded using ?binary?]
>
>I was looking at a freinds SB-220 and found that C21
>(a .02 cap across the tube side of the filament choke)
>had been removed. Any reason why this should be taken out?

?  C21 RF-bypasses the filament so that equal drive will be applied to 
both sides of the filament when one side is driven.  The amplifier would 
probably work without C21, but I would not remove it.

>Should I replace it? The amp appears to work fine without
>it. 
>
>cheers, Paul - VA7NT ex VE7CQK - email: paule@sfu.ca
>"Those who hear not the music. . . think the dancers mad."
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>


-  R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K, 
www.vcnet.com/measures.  
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