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Maraming nagagawa FM transmiter
Date:2014/3/11 10:44:54 Hits:
Description:Narito ang circuit diagram ng isang maraming nalalaman FM transmiter na ito ay walang isang likawin. Circuit ay simple at madaling maipon.
Ang gate N1 ay gumaganap bilang isang buffer para sa pagpapalakas ng mga signal mula sa condenser microphone. Ang inverter N2 kasama ang mga kaugnay na bahagi nito ay bumubuo ng oscillator ng dalas ng radyo sa rehiyon ng FM. Ang varicap diode BB109 ay ginagamit para sa dalas ng modulate ng audio signal sa carrier wave na nabuo ng oscillator. Ang mga Inverter N4 t0 N6 ay ginagamit upang himukin ang antena. Tulad ng ang N4, N5, N6 ay konektado kahanay ng kanilang mabisang impedance ng output ay mas mababa at madaling magmaneho ng antena.
Circuit diagram na may listahan ng Mga Bahagi.
Mga Tala:
Dapat ma-rate ang lahat ng mga electrolytic capacitors 10V.Gamitin ang anumang pangkalahatang mga layunin pampalapot madali microphone.You makakuha ng isa mula sa lumang telepono o tape recorder.
Gumamit ng isang 10 cm mahaba ang wire bilang antena.
Gates N1 sa N6 nabibilang sa parehong IC CD4069.
Ang baterya ay maaaring maging isang 9V transistor battery.Adapters radyo ay hindi inirerekomenda dahil ang mga ito ay magbuod ingay sa circuit.
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