This video was by request - a walk-through of the block diagram and schematic of the Heathkit HW-9 QRP CW Transceiver, circa 1984 or so. The block diagram is presented, then a walk through of the simplified block diagram, and finally a walk-through of the transistor level schematic.
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#81:Heathkit HW-9 QRP CW Transceiver Circuit Walk-Through - Ham Amateur Radio Schematic
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