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  1. B

    Switchable biasing Bob85 style

    Hey Mack, It's been a while since you built that circuit; are you still using it? How has it held up?
  2. B

    Switchable biasing Bob85 style

    Blowing the dust off the thread... Class C is more efficient and is appropriate for High Power design if linearity isn't your first concern. [see N. Dye, H. Granberg, Radio Frequency Transistors, 2nd Ed]. Mack's test proves a good point; at a given amperage with a specific power in the AB...