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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by Softmuppen

  1. S

    TIP31 Sound reactive LEDs

    Im using a 12V LED Strip. Should i use any resistor then? I Cant get the circuit to work.
  2. S

    TIP31 Sound reactive LEDs

    Do you have a suggestion for a better circuit with a 12 volt power supply? I will order another 3,5mm connector.
  3. S

    TIP31 Sound reactive LEDs

    So it will not work for the circuit? I must use either right or left channel, i cant use mono?
  4. S

    TIP31 Sound reactive LEDs

    I want to build the famous TIP31 Led circuit but I'm having some trouble. I've purchased the required components but I'm unsure of the actual circuit. I've made a scheme for my circuit. I'm wondering where i should put my resistors and what Ohm-value they should have. My second...

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