the
SHIVER bending step by step
bending a toy keyboard
with the SHIVER
click
image to view larger
i started this with the intention of
showing a step by step process using the SHIVER,
but two things became clear. the first is that the
process is too simple to bother really and the second
is that i often overdue things.
but i continue with this anyway.
click image to
view larger
so i grabbed a toy keyboard from the
pile and opened it up. then i started looking for a
good pitch bend. i got lucky and found a single resistor
that set the overall pitch and replaced it with a 1m
pot to give me a pitch control.
click image to
view larger
i then grabbed a shiver and wired it
up. the diagram for which you can also find HERE
click image to
view larger
i didn't have much space so i wired everything with
leads, and long leads at that. you see i didn't have
any idea where the shiver board would get placed inside
the case so i just made them all really long to save
me time if i had to do it later.
click image to
view larger
i then finished bending the rest of the
keyboard and tested everything. the keyboard normally
runs off of 3v from 2 AA batteries and the shiver modulation
rate was slower then i wanted so i cut out the battery
compartment to make room for a 9v and then i added
a voltage regulator between the main pcb and the battery
to run the keyboard, and ran the shiver straight from
the 9v to get faster speeds. this was all based on
my taste and is not necessary. but its very simple
if that is something you are interested in doing
click image to
view larger
i then took a couple of NES switches and modded one
so it had two spst switches instead of having one momentary.
after that i wired them up so one controlled the main
power and the other the shiver. i connected the rest
of the switche, pots and touch contacts. then painted
it and got everything mounted. you can find the finished
product HERE
UPDATE: after getting
this together and playing with it i realized that i
made a bit of mistake. the pitch pot was a 1M and i
chose the shiver to modulate it. the trouble is that
the shiver will only modulate over a range of about
200k and i should have used a quiver which is about
700k or so. so after thinking about it for a while
and playing around with the bends the starve pot turned
out the star of the show. so i grabbed a dpdt toggle
switch and made the shiver switchable between the pitch
pot and the starve pot, just parallel to each meaning
the pots still work as they are and become wetness
pots. now this thing is amazing. the range of sounds
i can get are crazy considering what i started with.
the starve pot was only a 10k so now it modulates over
its full range and gives both wild and subtle results.
check out the samples and see what i mean
please feel free to contact me
if you have any questions |
