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"content": "⚡ MINIPA70 Test Thread! 🧵\n\nThe board is populated and does not put out smoke when powered up. So what's next?\n\nAs I see it, the power amplifier has three main parameters that I need to find an optimal value for:\n\n* Power supply voltage\n* Gate bias voltage\n* Input power level\n\nFor each point in this three-dimensional space, I get the following resulting values:\n\n* Output power\n* Harmonics power levels\n* Intermodulation distortion\n* Current consumption\n* Temperature\n\nI have some reasonable starting points for the three parameters I need to tweak. A blog post by F5NPV has been invaluable for me, and in it he suggests good values for all the parameters.\n\nhttps://f5npv.wordpress.com/irf530-mosfet-amplifier/\n\n#AmateurRadio #HamRadio #electronics\nhttps://media.tilde.zone/media_attachments/files/113/856/795/553/948/056/original/f847bba97819504f.png\nhttps://media.tilde.zone/media_attachments/files/113/856/799/164/209/808/original/76f118c5bc9b1b75.jpg\n",
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