Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training

Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training

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Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training

£2.89
Delivery from £0.35

Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training

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£2.89
Delivery from £0.35

Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training

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£3.29
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Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training - Details

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Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training - Price Information

  • Cheapest price: £2.89
  • The cheapest price is offered by Amazon-marketplace.co.uk . You can order the product there.
  • The price range for the product Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training is €£2.89to €£3.29 with a total of 2 offers.
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Koolenry Flashlight DIY Kit DIY Flashlight Circuit Board Soldering Practice Suite Electronic Components Welding Training

Cheapest offer

The circuit is simple, the production is easy, and one board is multi-purpose. Working voltage: 1.5V (1 * AAA battery; battery not included) The portable flashlight kit realizes the function of flashlight with a small number of components, and has the advantages of simple circuit and easy production. We used No. 7 battery for multiple tests. Generally, the brightness is relatively bright within 5 hours, and the brightness be slightly behind. Principle of operation:After switching on the power supply, triodes Q1 because the base is grounded through R1, and the voltage at both ends of c1 cannot be suddenly changed. The base potential of Q1 is lower than that of emitter E, Q1 conducts, and the base B of 02 has a current flowing into Q2, and Q2 also conducts.
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