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DIY-4 Fire Engine Siren Kit | Audio Oscillator Electronics Practice

DIY-4 Fire Engine Siren Kit | Audio Oscillator Electronics Practice

DIY electronics kit that makes a rising and falling fire engine siren as the switch is pressed and released
Q1 and Q2 audio oscillator | capacitor charge and discharge sets the pitch
Instruction sheet included

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

商品簡介

工作原理

  • Q1,Q2為一音頻震盪電路.
  • Q1之基極偏壓C1及68K供應電流經SW .22K
  • 電阻向C1電容充電,則震盪聲漸漸變高,SW放開,則C1電壓經68K,100K放電,聲音則漸漸減低,如此SW一按一放使輸出聲音一高一低,彷彿消防車警報聲

 

注意事項：商品皆會附贈使用說明書

 

出貨清單

  • DIY-4 消防車聲警報器套件 x 1
Shipping & Payment

Delivery Options

  • 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

  • Sales Coordinator Contact
  • Apple Pay
  • 「SHOPLINE Payments ATM 虛擬帳號收款服務 6/1 由藍新金流承接，即日起不再支援此付款方式」Bank Transfer
  • Credit Card
  • Tcat (Collect on Delivery)
  • Pay on 7-11 Store Pickup (C2C)

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