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價格均含稅，下單享優惠！歡迎大量採購，由專人提供專案報價。

目前僅提供網路賣場服務，無實體店面，無自取服務。

價格均含稅，下單享優惠！歡迎大量採購，由專人提供專案報價。

目前僅提供網路賣場服務，無實體店面，無自取服務。

價格均含稅，下單享優惠！歡迎大量採購，由專人提供專案報價。

View All / Educational | DIY Kits / Electronic Kits
DIY-7 閃爍蜂鳴器套件

DIY-7 閃爍蜂鳴器套件

產品貨號：368030200080
區號：Qe12-07
品牌：
原廠貨號：CHD-111

滿千免運優惠(限郵寄和超商純取貨) on order

本賣場無實體店面，無提供自取服務，敬請見諒。 on order

NT$105
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Description
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Description

商品規格

工作原理
■Q1,Q2為一多諧震盪電路,Q1與Q2輪流ON OFF來控制LED之明與滅.
■Q3,Q4與390K,120K,0.04UF,33K接成一音頻 震盪電路,且Q3,Q4接成達靈頓電路,電流放大 率極大,故輸出音量大.
■D1與D2二極體是阻止正電壓加入Q3之基極.
■390K與120K為Q3之偏壓電阻,亦決定蜂鳴器之聲音.當偏壓為390K時聲音低,偏壓為120K時聲音高.由於二極體電阻相差大,且更因Q1與Q2之輪流ON OFF使Q3隻偏壓亦隨之改變為390K與120K,故喇叭有高低二種聲音輸出,再加上LED之一明一滅,即構成 閃爍蜂鳴器.





 

出貨清單

  • DIY-7 閃爍蜂鳴器套件 x 1
Shipping & Payment

Delivery Options

  • Overseas (FedEx)
  • Overseas (Post)
  • Postal delivery
  • 7-11 Pickup and pay in store (C2C)
  • 7-11 Pickup only (C2C)
  • Tcat - Room Temp.
  • Tcat - Room Temp. (Collect on Delivery)
  • Draft quotation

Payment Options

  • Bank transfer
  • Sales Coordinator Contact
  • Credit Card
  • Tcat (Collect on Delivery)
  • Pay on 7-11 Store Pickup (C2C)

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