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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 andrew.grimm3

  1. A

    LM1877 2.1 CH Amp/ Interace with Summing Amp

    I need to design a 2.1 ch amp using the LM1877. I understand how to get my values for the left and right channels but I am required to use a summing amp to interface both the left and right channels to the inputs of the summing amp and then construct a low pass filter on the output of the...
  2. A

    LM1877 Dual Audio Amplifier

    Well I have to use the same LM1877 as the 3rd channel also. What I'm unsure of is how to connect both IC's together.
  3. A

    LM1877 Dual Audio Amplifier

    I need help with a project building a 2 ch audio amplifier using the LM1877 IC. It needs to drive to (2) 8 ohm speakers and (1) 8 ohm sub woofer. The requirements are to be single supply operation, individual volume controls for the left, right and bass signals. It must be driven from a source...

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