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Circuit diagram of a PC to Midi interface 


                         Parts List:
                         -----------

IC1 = 6N138 Opto-Isolator, high gain, high output.  R1 = 270 ohms
IC2 = 7407 Hex Buffer.                              R2 = 2,200 ohms
D1 = Diode, 1N914 or equivalent.                    R3 = 4,700 ohms
C1 = 220 picofarads                                 R4 = 220 ohms
C2 = 220 picofarads                                 R5 = 220 ohms

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However, We accept no responsibility for damage or injury, however caused, due to the use of this data.
The origin of this design is unknown.