Finished Pieces


    casperelectronics Mixer

    This is just a simple four channel mixer. The case has wooden sides, an MDF base plate and a wrap around aluminum face plate. The picture on it was cut from an old health textbook. It’s a student taking a hearing test. Great headphones. There are three types of input jacks for each track.

    • stereo 1/8″ jacks for plugging in walkmans, cd players, computers, etc. (uses two channels)
    • RCA jacks for connecting old home stereo equipment
    • 1/4″ jacks for guitar, mic, synth, etc.

    casperelectronics Mixer

    Here’s the schematic I used….


    Sorry, no sound files for this piece.

    7 Responses to “Mixer”

    • 1

      Radu said:
      April 27th, 2011 at 9:30am #

      Great great job , i wanted to ask if you used stereo potentiometeres for stereo signal sources ? All the best from Timisoara – Romania !
      Radu !

    • 2

      Joe said:
      October 19th, 2011 at 8:57pm #

      Looks great! Where did you obtain the enclosure?

    • 3

      casper said:
      December 5th, 2011 at 11:42pm #

      i made it!

    • 4

      Hans said:
      December 24th, 2011 at 5:22pm #

      can i make it up to 15 channel?

    • 5

      casper said:
      February 16th, 2012 at 9:06pm #

      sorry for the slow response. I’m pretty sure you can make it as high as 15 channels without any problems. This is a very standard circuit and there is LOTS of info on its capabilities and limitations out there if you have the stomach for dry engineer speak.

    • 6

      Nick Corbo said:
      March 25th, 2012 at 6:12pm #

      Looks like there’s a pot on the output, where does that go in the schematic? Near the 1 meg resistor?

    • 7

      Bubu said:
      January 10th, 2014 at 5:29pm #

      Simple and effective.

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