elecronics

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  1. alexbez

    Relay bypass help needed!

    Hey guys, I am relatively new to micro electronics, and am in desperate need of help! I want to bypass the muting circuit in a electronic piano. This involves either activating the relay, or pulling it to ground (BA3-5 Relay, and the highlighted LS1 in the picture below). Please could someone...
  2. J

    Solution for a resistive circuit

    Hello. I am studying electronics and I came across a question that I am not able to resolve. The question asks for the value of resistance R so that the 5 Ω resistor (R5) in the circuit is subjected to a potential difference of 5 V. The circuit mentioned is in the following figure. I really...
  3. mouhkramo

    Using Cobra3 basic-unit

    How to add doppler effect to the interface of cobra3 wich came just with gaz law measurement. IS there any alternatives to use those phywe équipements to measure that effect ?
  4. D

    Does this work? This circuit uses an op-amp and a transistor to detect and cut off the loud noises.

    1: Microphone: The microphone is connected to the non-inverting input of the op-amp, which is pin 3 in this case. 2: Potentiometer: The potentiometer is used to set the threshold level for the loud noises. It is connected to the inverting input of the op-amp, which is pin 2 in this case. The...
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