Build your own pocket-sized Dreamachine !
Construisez votre
dreamachine de poche !
By Kevin Meredith
Questions,
suggest, improvements etc. : Kevin S. Meredith: alan_one@msn.com
This
is a weekend project
I just finished putting together (
I
have designed this simple strobing Dreamachine-type circuit that can be built
into a small pocket size box. It flashes between 7Hz and 14Hz with a speed control. Attached is the
schematic diagram and a picture of my finished prototype. Please feel
free to distribute the schematic however
you like.
I
was going to build a proper Dreamachine, but I didn't have room for it and
record turntables at cheap prices are hard to come by - SO I came up with this little circuit that does essentially the
same thing but in a small project box that you can fit in your pocket. I
call it the Electro-Hallucinator.
It's basically just a LED chaser that goes at around 10Hz or so. There's a
speed control that varies the rate from around 7Hz (upper range for Theta brainwaves) to 14Hz (upper Alpha). You can
use any NPNs for the transistors. I used four super-bright white LEDs for the
lights, which seems to work well --
these were the most expensive parts, but you need to have a bright light! Two
pairs of LEDs are spaced 6.5cm apart - the average distance between human eyes. My prototype runs on a 6V
camera battery which was chosen for its small size.
To use the Electro-Hallucinator, just hold it about 5-10cm in front of your
closed eyes. The type and intensity of visual artefacts can be changed by moving your head and eyes, etc. just as with
the Dreamachine. Experiment!
>>
.