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Here is a better question. In a push-pull, 2 transistor RF amplifier being driven with 4 watts, does each transistor see 2 watts of drive or does each transistor alternately get the full 4 watts of drive, one at a time? They are driven through a center tapped, broadband transformer, not a splitter. When one side of the input transformers secondary is swinging positive, that transistor is conducting while the other side of the center tap is swinging negative, pushing that transistor deep into cutoff. Drive power is not divided between transistors until a splitter is used.

Only one transistor at a time is ever contributing to the output power at any given time in a push-pull pair. Both transistors are not driven simultaneously due to the phase inversion through the input transformer. One transistor is always off (other than bias) while the other is on. One 2SC2879 can support a sustained collector current approaching 25 amps. No one will ever show a push-pull pair drawing close to 50 amps. Guaranteed!

<blockquote data-quote="Shockwave" data-source="post: 675500" data-attributes="member: 10882">Here is a better question. In a push-pull, 2 transistor RF amplifier being driven with 4 watts, does each transistor see 2 watts of drive or does each transistor alternately get the full 4 watts of drive, one at a time? They are driven through a center tapped, broadband transformer, not a splitter. When one side of the input transformers secondary is swinging positive, that transistor is conducting while the other side of the center tap is swinging negative, pushing that transistor deep into cutoff. Drive power is not divided between transistors until a splitter is used.Only one transistor at a time is ever contributing to the output power at any given time in a push-pull pair. Both transistors are not driven simultaneously due to the phase inversion through the input transformer. One transistor is always off (other than bias) while the other is on. One 2SC2879 can support a sustained collector current approaching 25 amps. No one will ever show a push-pull pair drawing close to 50 amps. Guaranteed!</blockquote>

[QUOTE="Shockwave, post: 675500, member: 10882"] Here is a better question. In a push-pull, 2 transistor RF amplifier being driven with 4 watts, does each transistor see 2 watts of drive or does each transistor alternately get the full 4 watts of drive, one at a time? They are driven through a center tapped, broadband transformer, not a splitter. When one side of the input transformers secondary is swinging positive, that transistor is conducting while the other side of the center tap is swinging negative, pushing that transistor deep into cutoff. Drive power is not divided between transistors until a splitter is used. Only one transistor at a time is ever contributing to the output power at any given time in a push-pull pair. Both transistors are not driven simultaneously due to the phase inversion through the input transformer. One transistor is always off (other than bias) while the other is on. One 2SC2879 can support a sustained collector current approaching 25 amps. No one will ever show a push-pull pair drawing close to 50 amps. Guaranteed! [/QUOTE]

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