[Amps] SB-220 bias question

[DF3KV]

Changing the Q at constant power level changes the currents in the pi-net,
not the voltages

73
Peter

-----Original Message-----
From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
Behalf Of Bill, W6WRT
Sent: Sonntag, 30. August 2009 03:23
To: amps at contesting.com
Subject: Re: [Amps] SB-220 bias question

ORIGINAL MESSAGE:

On Sat, 29 Aug 2009 20:48:51 -0400, "Joe Subich, W4TV" <lists at subich.com>
wrote:

>The higher circulating currents will very likely cause 
>the pi-network coil or bandswitch to fail. 

REPLY:

I think you are mistaken about the circulating currents going up. If that
really
was happening, the voltages across each of the pi-network elements would
also go
up. Since the antenna is connected across one of those elements (load cap)
the
voltage there would go up too, but it doesn't. 

73, Bill W6WRT
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