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Half-wave Bias

I would need a really good reason to build a FW bias supply into a push pull amplifier. First, the extremely light load involved makes it easy to reach ripple levels of less than a millivolt, even with only a small CRC filter. Add to that the fact that ripple applied in phase to both grids cancels in the transformer, and that NFB pushes it down even more, and it's just not an issue. Like they say, if it ain't broke, don't fix it. :)





Edits: 04/13/15

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