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N gauge colour light signals


These are high quality LED N gauge model railway signals compatible with our electronic control boards. CR signals are handbuilt using a combimation of plastic mouldings and etched brass components. They are available in both OO and N gauge. Aspect refers to the number of lamps in a signal.

For more information about how full size signals are used see signalling explained


Models are available with either safety rings or safety cages. Safety cages have been in use since the 1980's. For layouts previous to this safety rings would be more appropriate.2, 3 or 4 aspect signals can be used with our MAS-Sequencer, IRDASC4 and IRDASC5. 2 aspect signals can be controlled by IRDASC-1, IRDASC-2*, IRDASC-3*, SA1-S*, SA2-S*, SA4-S*, SA5-S*,SA7-SB*, SA8-S*, SA8-SB*, SA9-S*, and Simple Station Stop. * Indicates control units with an output capable of switching both a distant and home signal. The distant signal warns the driver of the home signal ahead. They work in conjunction so that the distant signal sets to yellow when the home is red, and both set to green when the line ahead is clear. The point Indicator-SO can be used to operate two 2 aspect signals at each point. One setting to red and the other to green dependent on the point setting. OO gauge signals


2 Aspect

SN06 Home with safety ring (Red and Green)


2 aspect CR home signal with ring

SN011 Home with safety cage (Red and Green)

2 aspect CR home signal with cage

SN16 Junction with two 2 aspect heads





SN011 Home with safety cage (Red and Green)

SN16 Junction with two 2 aspect heads

SN07 Distant with safety ring (Red and Yellow)

SN012 Distant with safety cage (Red and Yellow)


3 Aspect

3 aspect CR signals safety ring n gauge

SN08 With safety ring (Red, Yellow and  Green) (illustrated)

SN13 With safety cage (Red, Yellow and  Green)



4 Aspect


SN15 4aspect with safety cage4 aspect n gauge cr signals colour light signal

SN10 4aspect with safety ring (illustrated)




Extending wires from signals

CR signals model wuth extension wires soldered to board and insulated with heat shrink

With most makes of signals you will probably find the connecting wires to be too short. Because a lot of wires need to fit into the model signals post the wires need to be of a very small diameter. CR signals use enamelled wire, this is the same sort of wire used for transformers and electric motors. Instead of having plastic insulation on its outside enalled wire has a type of varnish or enamel which provides a thinner layer of insulation so allowing smaller diameter wires..

The photograph shows how to connect the enamelled wire to 7/0.7mm wire (7 strands of 0.7mm diameter each, this is thick enough for currents up to 1.4 Amps). This wire is commonly used by railway modellers. After stripping the insulation the 7/0.7 wire can be wound around the leg of the resistor. Twist the strands together first, if you do not individual strands have a tendency to splay out when soldered. Twisting the wire around the resistor leg keeps it firmly in place whilst soldering. This prevents the joint being weakend by the resistor leg and the wire moving before the joint has cooled.

It is best to insulate all the bare metal to prevent different wires touching. This can be done with heat shrink as shown in the photograph. 2.4mm heat shrink was used. Slip a length of heat shrink over the joint and then heat it up with a hot air gun. The heat shrink will shrink to up to half its original diameter. The signals common wire has no resistor and you may also wish to remove the resistors from the other wires if the model signal is being used with a control board with built in resistors such as the MAS-Sequencer. In this case wrap the thinner enalled wire around the stripped twisted 7/0.7 wire. The heat of the solder will remove the enamel from the wire at the joint. Again insulate with heat shrink. If you do not possess a hot air gun then you can get away with heating the heat shrink tubing with a soldering iron or match. A hairdryer does not get hot enough. An acceptable but less satisfactory way to insulate the joint would be to wrap insulating tape or sellotape around it.