Schematics needed for ....

[J. Larry Hendry]

I am mostly a lurker here, and most of my synth diy experience has been
limited to kit construction (PAiA and MOTM) and some limited-scope repair
work.  However, the deeper I get into modular, the more I find myself
wanting to do things on my own.  This list has been a great source of
information, and I appreciate the open sharing that goes on in spite of how
recently some of that sharing has been abused by commercial application.

I want to build a circuit that will generate a gate and trigger combination
from a switch closure.  I could settle for a gate only, but would prefer
both.  It seems like this should be simple enough, and I am willing to
tweak to get the exact voltages I am looking for.  However, I need a little
help getting started.

Can someone point me toward a schematic or suggest were I might search to
find one that would get me in the ballpark for this function?

I have two separate projects for alternate controllers to use with my
modular that would make use of this circuit.

The first is a Tannerin style controller that is being built for me that
will output a simple linear CV as the control is moved across the top
surface.  I want to add a switch that allows me to re-trigger envelopes (or
whatever) as I slide this thing around.  I am also going to add a Theremin
style left side antenna for CV output (Based on the T-max schematics).  I
think it would be really cool to have this auxiliary CV available for
opening filters or various modulation uses.  So, the right hand would slide
the oscillator CV around and perhaps tap gates with the thumb while the
left had was free for other expressive elements.

Project 2 is just a plain old joystick with the button on the end.  I have
a quite nice one that I want to build into a panel in my set up to output
control voltages based on X and Y axis.  I  thought it would be quite cool
to have the button generate a gate or gate/trigger when depressed.  The CV
part is easy.  But again, I need help getting started on the gate/trigger
circuit.

Thanks as always for this forum and the usually high level of respect given
to all who participate.

Larry Hendry