PROJECTS: SUPER TRI TONE WHISTLE
The windway is
an air passageway
between the languid
and the bowl. The air
travels through the
windway and then
causes an audible
vibration of air mole-
cules in the resonator.
The bowl assembly
guides air from the
manifold through
the windway.
The languid is a
precisely shaped air
stop placed in the
bowl. It shaves the
rising air into a thin
sheet, which then
continues on to the
windway.
Resonator or bell
assembly The sound
made by the whistle
comes from the oscill
a-tions of air as it enters
and leaves the resonator
through the throat. Air
enters and leaves the
resonator at a precise
frequency determined
by the length of the bell.
makezine.com/12/whistle
The throat or
mouth is the opening
between the bell and
the bowl.
The manifold
supplies high-pressure air from
the air compressor
to the bowl.
WHISTLE WHILE YOU WORK
The Super Tritone Shop Whistle is a simple but loud,
double-note signaling device that operates on high-pressure air supplied by an air compressor. It’s similar
in construction to a steam calliope pipe, except it’s
made from PVC plastic instead of brass or bronze.
Illustration by Timmy Kucynda
90 Make: Volume 12
