User Guide

4
*Larger motors require a larger capacity choke.
Chokes:
Item 702 - 1.5 ampere loads
Item 703 - 5.0 ampere loads
ON / OFF
switch
+
–
Optional main
sounds switch
ON / OFF
(shown sound "ON")
speaker
Red
Gray
Battery power - must not exceed 24 volts DC.
Use one 9 volt battery or a string of 6 AA or
AAA batteries (24 volt DC maximum input). Life
depends on volume setting and speaker
impedance. Typical operation of most sound
systems for one good 9 volt batteries is about 8
hours, AA or larger is well beyond 50 hours!
Gray
9V or 6-AA,
or 6-AAA
batteries
– +
wires with a " " ARE a
connection!
wires crossing over
(without a " ")
DO NOT CONNECT!
CHOKE *
lighting
circuits
DC
motor
524 SPST switch.
Switch shown in the OFF
position. Drawn as a spst.
1N4002 or
equivalent diode
(item #374)
This diagram allows for the use of rechargeable batteries. When
track voltage exceeds battery voltage, the sound system will operate
from track voltage and the battery will start to charge (when in the
forward direction). If you need to charge the battery fully without the
sound system on, place the locomotive on the track (with the motor
not powered if present) and leave full track voltage on for 14 hours.
The batteries will charge whenever the locomotive track power is
set for the forward condition regardless of the sound system being
on or off. They will not charge when the polarity on the track is set
in reverse. When running in reverse, the sound system will only
operate from the battery. A bridge rectifier could be used instead of
a single diode alleviating this potential problem.
Battery Holders
#579 - single 9 volt (shown)
#652 - holds 6 AA
#654 - holds 2 AA
#578 - 9 volt battery snap
connector
Left Rail
pickup
Right Rail
pickup
either rail may be used. Right / Left
only used for reference.
Red
White
Black
DC track power installation #2 with DALLEE controller #755.
With rechargeable or standard battery.
When track voltage exceeds battery voltage, the sound system will
operate from track voltage instead of battery voltage.
If using a standard battery instead of
rechargeable, do not connect/use a resistor!
Resistor needs to be calculated for battery type (you must know
the charge currents of the batteries used) and maximum track
voltage used.
R = (Vtrk max - Vbatt nominal) / battery charge current
For 12 - 14 volt maximum track voltage:
1 - Item #647 (8.4v / 150mahr) rechargeable battery use 380 ohms
(1/4 watt).
6 - Item #648 (1.2v / 700mahr) rechargeable batteries in series, use
100 ohms (1/2 watt).
For 18 volt maximum track voltage:
1 - Item #647 (8.4v / 150mahr) rechargeable battery use 560 ohms
(1/4 watt).
6 - Item #648 (1.2v / 700mahr) rechargeable batteries in series, use
180 ohms (1 watt).