In this video series I will be building up this kit
https://www.amazon.com/gp/product/B07KT71W1C/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
Full Playlist:
https://www.youtube.com/playlist?list=PLsMaN1bGWynxWGCfosybN_ccMe3Mas91p
There are a few places out there experimenting with this kit
https://www.rudiswiki.de/wiki9/AfuSW-PA-45W
Here's that forum I picked up the schematic from
https://www.saure.org/phpBB_04/viewtopic.php?t=187
And here's my google drive with a readable schematic
https://drive.google.com/file/d/1rXdZkfNStUP0Zz3jFpwE6WsESj3K73Rh/view?usp=sharing
Here's my LTSpice model for this kit
https://github.com/thaaraak/ltspice/blob/master/RF_AMP_2078_V306.asc
I made a mistake at around 2:35 - I was pointing to the SMD diodes not the transistor
0:00 Intro
2:16 Walkthrough of the kit/components
3:19 Schematic walkthrough - Stage 1
4:15 Schematic walkthrough - Stage 2
5:02 Schematic walkthrough - Final stage
7:20 Build order
10:40 A final note on heatsinks