
I found that at roughly 14 volts it draws an amp and puts out a cool 3 watts. The heat sink hardly changed temperature despite some pretty long transmit on times. I temporarily drove my Ameritron amplifier on 40 meters to about 75 watts with ease. I will be replacing the power supply and expect to get 150 watts out with little difficulty.
Pictures and descriptions of the testing are at:
AM MAX HAM VERSION
Shoot me an email if you have any questions. Email access is right on the AM MAX page above.
Thanks Marko! As you predicted

--Larry