User Guide

4
*Larger motors require a larger capacity choke.
Chokes:
Item 702 - 1.5 ampere loads
Item 703 - 5.0 ampere loads
wires with a " " ARE a
connection!
wires crossing over
(without a " ")
DO NOT CONNECT!
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.
either rail may be used. Right / Left
only used for reference.
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 - 0.6 - Vbatt nominal charge voltage) / battery charge current
For 12 - 14 volt maximum track voltage:
1 - Item #647 (8.4v / 150mahr) rechargeable battery use 330 ohms (1/4 watt).
6 - Item #648 (1.2v / 700mahr) rechargeable batteries in series, use 91 ohms
(1/2 watt).
For 18 volt maximum track voltage:
1 - Item #647 (8.4v / 150mahr) rechargeable battery use 620 ohms (1/4 watt).
6 - Item #648 (1.2v / 700mahr) rechargeable batteries in series, use 150 ohms
(1 watt).
ON / OFF
switch
+
–
Optional Diesel
motor sound
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
– +
CHOKE *
lighting
circuits
DC
motor
#524 SPDT switch.
Switch shown in the OFF
position. Drawn as a spst.
1N4002 or
equivalent diode
(item #374)
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
Red
White
Black