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Here I show the repair on another Heathkit sb-200 Enjoy.

This is one of the most popular, easiest to deploy, EFHW antenna for Ham Radio. This uses a 49:1 transformer, rated for 400 watts. Also paired with it is a 1:1 Isolator, to help stop RF coming back into the…

Learn the difference between Class A, Class B, Class AB, and Class D audio amplifiers in this short video. See how each amplifier type works with animation. Improve your understanding of audio amplifier circuits, sound quality, and efficiency. This video…