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Re: [Amps] 1:9 un-un for grid driven tetrode

To: amps@contesting.com
Subject: Re: [Amps] 1:9 un-un for grid driven tetrode
From: Steve Thompson <g8gsq72@gmail.com>
Date: Mon, 25 Oct 2021 17:33:15 +0100
List-post: <mailto:amps@contesting.com>
> On 10/25/2021 12:31 AM, Steve wrote:
> 
>     Doesn't a coil in parallel with the 450ohms to cancel the tube's 
> capacitance mess things up at lower frequencies? What's the Cin? 
> 
> 
> Study resonance.
> 
> 73, Jim K9YC

What's the impedance of a parallel tuned circuit at frequencies well
below resonance?

Steve G8GSQ
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