Replacement bulbs for LGB 28002

[Andrew_au]

Accidentally blew a bulb while testing my decoder on my LGB 28002.

Is the Massoth 8311110 compatible with these locos? Or am I better to try upgrading to LEDs?

 

[JimmyB]

The push in lamps for LGB are of various voltages, so you need to check the voltage. If you go down the LED route you will require the appropriate resistor.

 

[PhilP]

Ah!
You probably needed to set the lighting voltage divider CV, to '5' or '6' to start with..
Otherwise the outputs will be full track voltage.

If you have flat-ended bulbs, they will be 5V.
If the ends are rounded, then they will be 19 or 24V.

PhilP

 

[Andrew_au]

You probably needed to set the lighting voltage divider CV, to '5' or '6' to start with..
Otherwise the outputs will be full track voltage.

Yes. For testing, I patched directly to the light bypassing the mainboard. The mainboard has voltage reduction from track to 5V, but with the bypass I needed to update the CVs to not over-power the light. I remembered to do that when testing the eMotion, but forgot to do the same for the 55021 and burned out the bulb.

 

[Greg Elmassian]

That's why I always use full output and dropping resistors for the bulb.... forgetting the "dimmer CV" has blown too many bulbs.

Most decoders nowadays do indeed have a 5v common supply, so you don't need large resistors.

Anyway, not gloating on your bulb burnout, but even the most experienced person burns bulbs out this way on occasion. I don't.

 

[Dan]

LGB actually did not use a 5 volt bulb power source, they run bulbs at 6.2 to 6.8 volts. Smoke units are Seuth 4-7 volt version and LGB runs them in the 6 volt range also.

 

[LGB333]

Accidentally blew a bulb while testing my decoder on my LGB 28002.

Is the Massoth 8311110 compatible with these locos? Or am I better to try upgrading to LEDs?

Andrew - You can use either the massoth or LGB 5 volts push-pin light bulbs..........they're both fine for your locomotive.