From the specs and what I can research on the internet, the Icom looks to be a pretty rugged rig. Max power on SSB/CW/RTTY/FM is 100 watts. Obviously, it’s not a good thing to run it wide open on the heavy duty-cycle modes like RTTY for great amounts of time, but I’ve pushed it up to 50 watts on FT-8 (15 seconds on/15 seconds off) down on 80 meters and the temperature meter on the display barely went up one teeny division, and I didn’t detect any speed increase on the temperature-controlled fan. AM mode is 25 watts max … that’s pretty standard! I also didn’t detect ANY ALC being generated, so the output should have been undistorted and linear.
Lovin’ this rig!
73 de Dick N4BC