Note
QST Apr 1979, p. 4.
QST, May 1979, p. 90. (full specs)
The HF-200A solid-state transceiver covered 80-10 meters with 200 watts input power. The HF-200A used a six-pole crystal filter in its 9 MHz IF. The power amplifier was meant to work into a 50 ohm load and had no high-SWR protection feature.