9
9. Infrared detector circuit.
Scale flash photography - 4
10. Infrared switch components,
LED on the left, phototransistor on
the right.
10
maintenance, and
its light is invis-
ible, allowing you
to hide it in your
scenery.
Most component
values are not criti-
cal. The circuits are
simple enough that
they can be built
on a small solder-
less breadboard.
If you use other
components, some
adjustment to the
resistor values may
MRH-Jul 2013
