Scott Dorsey wrote:

Bill Janssen wrote:


I modified a 140 watt unit using information I got from some where.
Only two capacitors had to be changed.



Was there much RF trash coming out of it?

Never checked as it didn't bother anything I was using. (10 GHz amp
power supply)




It worked well until I tried to run a motor from it :-(.



The modified sine wave units need to be derated by about a factor of four
to run electric motors, and the motors do tend to buzz a little. What
400Hz motors do you need to run? Antenna tuner?

I tried to run a military surplus fan.

Bill K7NOM

--scott