nobcha23のエアバンド受信機自作ブログ DIY airband receiver BLOG

エアバンドレシーバーキットの組み立て、改造を手掛けます Assemble and remodel Chinese airband receiver kit

2021-09-29から1日間の記事一覧

Studying R80 circuit diagram PART5 Squelch and audio circuit  R80回路図の研究 その5 スケルチ、音声増幅回路

After FM62429 variable attenuator the audio signal is going to LM386 amp.The same signal is going to the MC3661 filter amp and detector. MC3361 is naturally the FM receiver IC and this receiver is using filter amp for detected signal AMP t…