Class D AM Shortwave Transmitter Tutorial

[ogrevorbis]

So for the last couple months I've been working on a high power push-pull transmitter for shortwave band. It works up to 5 MHz. I tried for over that, but the efficiency is low. The efficiency below 5 MHz is 95%. I will begin working on a new version that should work higher after a little break.

I wrote about the whole project on my blog. In the "part 1" you can also find an archive (7-zip) to a bunch of schematics for shortwave transmitters that I collected during the process of researching how to do this. Keep in mind, this is coming from someone who knows a ton about radio, but is not an actual electrical engineer (so understand if there are some holes in my knowledge).

Here it is: dosaidsoft.com/wp/category/radio/class-d/

I'm sure you'll find some errors in there Kage

[Kage]

Neat. I look forward to seeing your progress and will have to look a bit closer when I get time later.
Haven't even got around to giving my own TX gear some broadcast time, so busy with an audio broadcast processor project for AM that hopefully soon I will have enough designed of that to post about.
Nice to see that you're taking it to a pro PCB build level, something I need to start doing if I sell projects.

edit: Just noticed your youtube video that popped up in a certain subreddit I'm subscribed to. Thanks for all the effort you're putting into this. We need more info like this available to the community.