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QMX Heated Up, now no output


 

Using the same power supply (11.8v via BUC converter) and same antenna (Resonant 40m) that had been working for an hour, suddenly the unit quit putting out RF and when I put my hand on it it was very hot.
Disconnected power of course, and verified the SWR was still 1.3 on the 40m antenna.

This is an assembled unit from QRP-Labs.

I've done a reset via the menus, and let it cool overnight, no overheating now, but it's drawing slightly more current (0.12 increase to 0.24) at idle, and doesn't draw anything more at transmit.

I don't know where to start.

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