Large Scale Central

Lights for LGB Mogul

Electronics Power and Sound
#1

I am putting a revolution decoder into a LGB Mogul.
I have removed the factory board and installed a the decoder. Motor works fine. Now for the lights I replaced the std. 5v. Light with a 24 v. Light
but I think it is too hot for the fixture. Does anyone have the spec. For these bulbs? I need to place a resistor in the line to tune down the voltage for the 5v light or maybe tune down the 24 v. a little.

Any suggestions?..

Thanks,
David

#2

Use a 5V regulator. The lamp will be very happy.

#3

Why not just get the LGB 24 volt bulb.

Or program the light source for 6 volts (that is what LGB runs their smoke and bulbs at).

I have seen some engines at 6.8 volts bulbs will blacken over the years, but smoke units work real nice.

#4

Dan,
I have the 24v lights but they get hot and I am afraid they are too hot for the enclosed light fixtures.
The revolution decoder only supplies track voltage for lighting.

Bill,
I guess the regulator will solve the problem and they are a cheap fix.
The lead weight will be a good heat sink.

Thanks,
David

#5

What voltage are you running the 24 volt bulbs with that they get hot? The loco must be running as fast as the TGV!

Greg

p.s. 24v light bulbs on 5 or 6 volts? Do you expect them to light up? Try it.

p.p.s hint: I think that the “24v bulbs” in use are NOT 24v… if they light on 5v, no way.

#6

Where did the 24 volt bulbs purchased and by what MFG?

I have found many manufacturers use 14 volt bulbs in large scale as DC power was around 18 volts at full speed.

Even LGB had 18 volt bulbs (the yellow/orange tinted ones).

So, if hot I suspect the ‘24 volt’ bulbs were really a lower voltage and would get hot.

I have never had a problem with the LGB 24 volt bulbs.

And 5 volt LGB bulbs on 24 volts are really bright and only last about a minute.