Miscellaneous Railroad Company LIGHT MODULE # LM34-3V for DC Lighting Effects [ HO ]

The module provides regulated, directional power for 3V lamps or 1.5Volt mini-lamps

The LM34-30 may be installed in a caboose, locomotive, passenger or observation car.

The lamps will operate before your DC locomotive starts to move, so a “diode board” is not needed for the locomotive.

A tiny 3Volt incandescent lamp will work great for a headlight, but the LM34-30 may be used to operate a white LED (for a headlight) with an additional 100µF 6.3V capacitor to reduce flickering.

ELECTRICAL CHARACTERISTICS: The module receives track power from the wheels, and is designed for 12Volt DC systems.  (Don’t skimp on your pick-up system)

Maximum input voltage is 16VDC.

Output voltage is 3.0Volts @100mA and 1.5Volts DC @ 30mA.

NOTE: The module will not operate correctly on DCC or AC railways.

 

Install (marker) lights on both ends of the caboose or car.  Track polarity determines which end illuminates.  The module end that has negative ( - ) power will illuminate.

Suggestion: orient the Light Module so that the connection to the wheels is directly over the pick-up on that side.  This will help prevent confusion when trying to discern which end will operate.

Install the module inside the roof to minimize visible wiring.

Make the solder connections before installing the module inside the vehicle.

There is nothing electrical on the back of the module, so it is compatible with brass/metal cars.  Double-stick foam tape is suitable for mounting.

Connectors are provided (plus one spare) to permit assembly and disassembly of your vehicle.  Snip them from the carrier strip before use.  They may be covered with electrical tape or “heat-shrink” (but don’t shrink the “heat shrink tubing” so the module may be removed later).

 

When 2 lamps (1.5V) are connected in series to the 3Volt output DO NOT connect to the center pad which is the 1.5V output.  When you use two lamps in series, both lamps must have identical electrical characteristics.

 

The operation on each end is independent from the other end; therefore the connections one end does not need to be the same as the operation on the other end.

 

The module has solder pads for electrical connections.

Lightly wipe the pads with soldering flux before soldering to speed the process.

Protect the model from heat while making the connections.

CAUTION: Use a 35 watt pencil iron or a temperature controlled soldering station when making connections on the module to prevent damaging the module.

( TIX solder or a low melting temperature “Eutectic“ solder is recommended )

A note about heat: wrap any incandescent lamps with a layer of aluminum foil to prevent direct contact with a plastic body or shell.

The module is painted black to help obscure it.  If the paint blisters during soldering you are applying too much heat, and the module may be ruined.

 

Do not attempt to solder with the module inside the car; you will melt something.

I attempt to provide the most accurate description possible.

My intention is to prevent any surprises.

WARNING: CHOKING HAZARD - Small Parts - Not for children under 14 years of age.

Your purchase will come packed for damage-free inter-planetary shipment

 

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