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Recent content by mande

  1. M

    Help me with an audio tone control unit

    Audio Tone Control Unit Hi i'm trying build a tone control unit, i need help on understanding different sections of the unit work i.e treble Bass and Middle.in relation to frequency and Gain. I appreciate your help.
  2. M

    3 phase Electronic soft start

    I'm trying to design a 3 phase soft start for an induction motor using 30Vac. I've used a TCA 785 chip from siemens without luck as the chip seems to be unstable,it fires the triac at one time but the stops the next. Can anyone help me in designing one including any suggestions on chips and...
  3. M

    How to calculate line level in relation to amplifier gain?

    i'm designing a microphone preamplifier of about 40-60dB gain? what is line level? how do i calculate line level in relation to amplifier gain?
  4. M

    Need ideas for microphone and guitar pre-amplifiers for a 8 channel audio mixer

    Re: audio mixer is it logical to link the mic and guitar pre amplifiers to one tone control unit. or should i design a separate tone control section for each of the inputs.
  5. M

    Need ideas for microphone and guitar pre-amplifiers for a 8 channel audio mixer

    i'm designing an 8 channel audio mixer. i'm designing the input stages which include a microphone,guitar and cd player. basically i,m asking for ideas on microphone and guitar pre amplifiers.

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