S-Helper Service Locomotive | F3 | Electrical

Manufacturer:

S-Helper Service

Product Category:

Locomotive

Model Name:

Notes Type:

Electrical

Title:

Lights

Notes:

Don Thompson warns to not plug DCC decoders into this engine without dealing with the headlights first. The headlights are 5-volt bulbs, and they will blow as soon as the decoder receives power (usually around 12 volts). One option is to consider replacing them with LEDs and a matching resistor. The same applies to class lights, numberboards, and Mars lights, as applicable.

For the dual-headlight models, Rich Gajnak provides the following information. These engines have bracketing to both lights on the cab interior casting. Note that both the SHS and MTH models are the same, except that the SHS models use lightbulbs (see note above) and MTH's have LEDs. These models have the active headlight in the upper opening regardless of whether it is a single- or double-light version. Real-world F units have the MARS light (when so equipped) in the upper opening and the headlight in the door. For the SHS F units the lights are wired to different pins on the 8-pin DCC plug. Rich swapped the lights at the cab interior casting on his models.