Hello and welcome to the site!

I’m putting this site online today, Jan 1, 2018 to be a place to exchange ideas primarily on designing, building and testing LDMOS RF amplifiers, power supplies, LPFs, and just about anything related.

Why should you build one of these amplifiers?

Well, for one, it’s a lot of fun and will challenge you across a lot of different disciplines. Building one of these amplifiers is at least 50% an exercise in mechanical engineering. Bet you didn’t think about that!

You also get into managing 50V 50A, bias circuits, RF switching (both low and high power), PCB design, control circuits, thermal management, filters, on and on.

Throw in the fact that commercial versions of these amplifiers are ridiculously priced, and you have some really good motivation.

Rob, N4GA