45W SSB Linear HF/FM/CW/HAM Linear Power Amplifier Amplificateur Shortwave Signal Amplification DIY Kit

Casey to IRB here again with another quick video wanted to make a video about a little kit that I purchased that I was rather interested in on eBay and it's this mini PA 70 Chinese hf q RP amplifier kit um five watts in produces approximately 70 to 80 watts of output it's a little kit it's about twenty dollars amazingly arm and it does work but there's very little documentation on it and how to put it together you kind of have to take your crews in a schematic but I built it and it doesn't come with this heatsink but this is the kit you get the wine the transformers yourself the the circuit board that they actually use pieces of circuit board on the ends of this in order and you soldered them to the tubes that go through the ferrite cores that make up the this transformer and you have to do some surface mount soldering there's a transistor and a regulator and the bias adjustment that's