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LDMOS Amplifier for 630 meters

A little bit of progress

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August 26, 2019

I made a little bit of progress on the LDMOS amplifier. I got the output raised by about 10 watts with the same drive level. Headed in the right direction...

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Schematic

September 10, 2019

Here's the schematic. It took 10 revisions to get everything working to my satisfaction.

First video

September 03, 2019

Here's the first video of my 630 meter LDMOS amplifier build. https://www.youtube.com/watch?v=7TwW9u4PvqU

Input matching 3

June 28, 2019

It took many hours and many iterations, but I think I finally got an impedance matching network that will work for the 300 watt LDMOS amp.