Midi-CV part 2

[Joachim Verghese]

On Wed, 19 Jun 1996, Isac Georg Jensen wrote:

> I've tried to replace the CNY-17 (optocoupler) with another, but I get
> the same results. Can anyone tell me if the circuit is right, or if I'm
> doing anything wrong ?

Try using a fast high-gain optocoupler such as the 6N138, and a 330
or 270 ohm pull-up resistor. CNY-17 and TIL-111 devices are not good
enough for MIDI.

-joachim