MOTM

I think the R and C need to be swapped.

Paul S.

----- Original Message -----
From: The Old Crow <oldcrow@...>
To: <motm@egroups.com>
Sent: Tuesday, April 25, 2000 12:32 PM
Subject: Re: [motm] module idea & question


>
> > > Which leads me to my next question, is there any simple way to make a
gate
> > > to trigger pulse convertor? -Nate
>
> > Sure, use a 555 timer as a monostable, set for a 100us output pulse.
>
>   Ultracheap method (fits in one end of a patch cord):
>
>   gate >---/\/\/---+
>             22K   _|_
>                   ___ 0.01uF
>                    |
>                    |
>                    +--------> trig ___|\___
>                   _|_
>             1N914 /_\
>                    |
>                   _|_
>                   \_/ (ground)
>
>
>   ..at least I think that's how I used to make these.  Just some dinky
> step differentiator with a period of about 220 microseconds and a diode to
> keep the return step (gate returning to zero volts) from creating the
> negative differential pulse. __|\__  __
>                                    |/ <-- that thing
>
>
>    Nearly as cheap method but needs PIC: program one of the 8-pin PICs to
> output triggers on a few pins for each gate input.  Can then do fun stuff
> like an output pin for each rising gate edge, an output pin for each
> falling gate edge (trig on release) and an output pin for trigger on both
> edges.  Could even fudge a konb in there to set the trigger pulse width.
>
> Crow
>
> /**/
>
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