バラックで組んだFETプリアンプでDIY電子キットFMラジオを高感度化する改造

I bought a DIY electronic kit 76MHz-108MHz stereo FM radio receiver from Amazon, and after installing a high-frequency circuit made with a single FET in a shack, the radio, which could only receive three stations with auto-tuning, can now receive up to eight stations. The sensitivity has improved significantly. 00:00 Comparison of sensitivity with auto-tuning 00:50 Explanation of how to increase sensitivity 01:32 Explanation of high-frequency amplifier circuit using FET 02:08 Modification of assembled kit 03:37 Sensitivity check of modified radio 04:24 Additional modification to turn off high-frequency circuit when powered off 05:36 Modification when assembling a new kit 06:43 Comparison of radios modified in different ways 08:42 Circuit diagram and shack wiring (reference video for modification) I used VOICEVOX: Suzumatsu Shuji. #Homemade #Electronic circuit #DIY #Amazon