Hammond Commodore MIDI Interface


Posted on Feb 6, 2014

Here is the schematic circuit board. Each switch puts out -2V when it`s on and 0V when it`s off. The four 4067 chips multiples the 64 switch signals into 4 signals that go back to the main PIC board.


Hammond Commodore MIDI Interface
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Capacitance Meter ( 68HC711D3FN )
    Linear-triangle-wave-timer
    user-customizable PTT/FSK API of MMTTY
    white led driver provides 64
    electronic circuit amplifier
    Another Arduino project for newbies
    250 to 5000 watts PWM DC/AC 220V Power Inverter
    1999 Pontiac Montana: console temperature MPG compass etc. failed
    LED Light Pen
    Application of IR2130 three-phase fixed frequency output of the power supply system wiring diagram



    Top