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Now
you can bring that
evocative "exhaust
steam sound" to
your layout or the garden
railway! These modules
generate a gentle, steady
"hiss" when the
train is stationary, the
effect changing to
"chuffs" of
"exhaust steam"
when the loco is in
motion. The rate of chuffs
is linked to track voltage
or regulator setting, and
are approximately matched
to the rotation of the
engine's wheels.
Each
unit measures 35 x 90 x
20mm, and is 12 - 18V d.c.
operated, from batteries
or a d.c. power supply.
Controls are provided for
overall volume, parking
hiss level, and
synchronization (the
latter is used to match
the chuff rate to the loco
in use).
When
reviewing the CM-2 in MODEL
ENGINEER, September
1995, Jim Robson described
it as "...very
realistic...".
N.B:
these units are not
suitable for DCC, or
controllers which
incorporate feedback.
Hear
the Steam Sound in
action:
Train
starts off from a
station, accelerates,
then slows down and
stops (1,059kB) Play
CM-1
Steam Sound Module
For
the small to medium sized
layout, or onboard locos
in O gauge and above.
Supplied with 50mm round
speaker (a small amount of
soldering required to
attach the cable to the
speaker).
Ref.
CM-1 | £23.95 
CM-1A
Steam Sound Module (shown
above)
As
CM-1, but supplied with 2
x PP3 9V batteries,
pre-wired battery clips,
on/off switch and speaker,
for easier installation in
O, G scale, etc. or on the
home layout (illustrated
above). No soldering
required.
Needs
only two lengths of
single-strand or
multi-strand cable (1A
rated or higher) to
connect to your
controller's track output,
and the unit is ready to
go.
Ref.
CM-1A | £27.95
CM-2
Steam Sound Module
For
the larger layout or
ride-on loco. Supplied
with 125 x 77mm oval
speaker for greater volume
at exhibitions or on home
layouts. A small amount of
soldering required to
attach cable to speaker.
Recommended
for use with a dc power
supply, capable of
supplying 1/2A (0.5A).
Ref.
CM-2 | £27.95
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