[sdiy] midi optocouplers

[Karl Ekdahl]

A quick question: would a PC814 opto with  rise/fall time max of 18uS be good for midi? I know the usual  suggestions are 6N13X with way lower fall/rise but according to my  calculations; 1/32150=31uS is absolute minimum rise/fall, so about half  that should be good, right? Also, what resistor to VCC should i use  (And why)?
  
  thanks
  
  Karl
  
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