Refinement of the radio station QYT-7900d 

In this video, very important and useful modifications of the QYT-7900d radio station are made.
The cooling of the output transistor and the entire radio station as a whole has been optimized. The outputs for the range 145 - 430 MHz and 250 - 350 MHz are separated. The current consumption of the output transistor is reduced, which facilitates its critical operation. Made additional stabilization 3.3 in the power line. The video is step-by-step, which will create fewer questions for the viewer regarding the conversion of the QYT radio station - 7900d.
Happy viewing everyone! 🕵 ⬇️⬇️⬇️
Channel: Egor Dovgan - / @user-ke2xn1wp7s
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