why p-p amp RL for class B is 1/2 the class A load? - diyAudio
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Old 12th February 2008, 04:47 PM   #1
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Default why p-p amp RL for class B is 1/2 the class A load?

why p-p amp RL for class B is 1/2 the class A load?

thanks!!
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Old 12th February 2008, 04:54 PM   #2
ilimzn is offline ilimzn  Croatia
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Because in class A PP both tubes work at the same time into the same load sharing it, so for each tube it looks like a load of twice the impedance (two times 'lighter' load). In class B tubes work in alternate phases, one for each half-wave, so the load is not shared - each tube sees the full load for one half wave.
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Old 12th February 2008, 04:56 PM   #3
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thanks
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