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Class-B push-pull power amplifier

  A push-pull type linear amplifier with RF FET RQA0009. Output power is ~ 10W with power supply 13.6 V.

Schematics

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The below figure (a) and (b) show input-output and -gain characteristics at f = 5 MHz. OP1 is slightly above 40 dBm (10 W). The figure (c) shows frequency dependence of ouput power with input power = 50 mW.
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