DIY drum pad/controllers

[Harry Bissell]

DANGER Will Robinson...

The "Perspex" tubes are reminescent of me "Vistalite" piezo cymbals... They make
so much acoustic noise when you hit them that they are almost useless as
triggers. I like to epoxy a .177 caliber lead pellet to the center of a cased
Radio Shack piezo buzzer. The weight makes it into an "accelerometer" instead of
a microphone. I mount it in a horizontal piece of radiator hose (1 1/2" dia.)
about 5" long. You can beat it with a stick and its almost silent. I call it a
"Hose Head". Can you say "hosehead" in Australia ???

:^) I do dig the "glowing" tube idea though...    Harry

Martin Czech wrote:

> :::I was thinking of makeing some "tubular bells" with clear perspex
> :::(illuminated from the top) with a XTAL earpeice as the pickup.
> :::
> :::When you strike it two things happen;
> :::
> :::1) the xtal generates a signal, amplify/fullwaverectify and bingo one
> :::trigger that is velocity sensative (harder you hit it, the bigger the CV),
> :::all you need is a S&H to sample the CV whe its above a certain level and
> :::hold it until the next time.
> :::2) This is my daft extra, the perspex is lit by a bulb, that gets bright
> :::then fades as you you hit it... eat your heart out JMJ!!!
> :::
> :::Paul full of stupid ideas
>
> I recently toyed arround with piezo/midi triggers.
> It is also interesting to use the piezo spike as input for
> those cheezy drum box resonator circuits, this should
> work as well. These circuits are in my first electronics
> book that I bought with 15 or so.
>
> m.c.