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[AMPS] Linear Amplifiers

To: <amps@contesting.com>
Subject: [AMPS] Linear Amplifiers
From: measures@vc.net (Rich Measures)
Date: Mon, 28 Jul 97 05:17:17 -0700
>Can someone answer a naive question, please?
>
>What is the difference between audio amplification and linear RF
>amplification? 

Audio amplifiers use a 2-tube push-pull configuration with a transformer. 
 Each tube supplies half of the waveform.  Tube-type RF linear amplifiers 
use a push-push configuration with a Pi-network/'flywheel' that fills in 
the other half of the waveform.  Audio amplifiers can amplify 
non-coherent waveforms and coherent waveforms.  Push-push RF linear 
amplifiers only amplify coherent waveforms.  

>Don't both require a linear amplifier, with the same
>transfer characteristics? Aren't the mathematical models for analysis
>the same?

The models are different.    
Rich---

R. L. Measures, 805-386-3734, AG6K   


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