[sdiy] What is a

[Scott Gravenhorst]

Gate, especially in the context of a FatMan is not a pulse.
It is a logic level.  It is a TTL logical high while a key is 
pressed and a TTL logical low when no key is pressed.

"Jimmy Gogas" <toothpick_77 at hotmail.com> wrote:
>I was wondering if someone can give me an exact explanation aout what a gate 
>is? I know it's a pulse, but what is its width? Does it last as long as the 
>key is pressed, or does it last for a constant amount of time? How about the 
>voltage? I'm currently building a Littleman synth (like a Fatman), and was 
>wondering what the amplitude (voltage) of this pulse is. Does the voltage go 
>back to zero, or does it go to a negative value.
>
>Thank you in advance.
>
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