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Re: [Amps] Two questioins about tetrode amplifiers.

To: amps@contesting.com
Subject: Re: [Amps] Two questioins about tetrode amplifiers.
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Sat, 2 Nov 2024 12:11:20 -0700
List-post: <mailto:amps@contesting.com>
On 11/2/2024 11:51 AM, Steve Thompson via Amps wrote:
Jim, by any chance do you have any articles covering that? I've done
calculations of operating conditions from Rl and load line (and vice
versa), still got an Eimac tube computer somewhere, but I've not come
across anything relating to output impedance. I'd be very interested in
that.

It was taught in my EE course at the time. I would expect it to be in the classic texts that others have referenced. It's also called the "source impedance,"which is the resistive component of the Thevenin (series) equivalent circuit -- a voltage generator in series with that impedance.

73, Jim K9YC

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