[sdiy] MIDI specifications

[Paul Maddox]

Robert,

> Isn't the logic delay time shorter than one microsecond?  Good old TTL
> would run at 10-20 Mhz.  Wouldn't that imply that logic delay time would
be
> quite a bit shorter than one microsecond?

yes, but you're going through a OPTO-Isolator, a logic gate, and a
trasnsistor (or second logic gate)..
so its not just the TTL logic...
Do this 2 or three times, and you're delay is noticable.
Especially at high tempos.

Paul