Transformers and Lighting

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Metroland
Posts: 45
Joined: Fri Dec 23, 2011 2:40 pm

Transformers and Lighting

Postby Metroland » Tue Dec 27, 2016 3:11 pm

Hi.

Willing to take advice on this one. I have placed my depot lighting, and building lighting in place. I would to know the best transformers out there to run my wiring too please. Ive never used lighting before so its all new to me...

four yard floolights ( small ) and two sets of building lighting.

thanks in advance.

Ex-Pat
Posts: 1288
Joined: Tue Feb 08, 2011 10:51 pm
Location: Dundalk Ireland

Re: Transformers and Lighting

Postby Ex-Pat » Tue Dec 27, 2016 4:06 pm

Hallo Metroland,

Not something I can help you with, but I think you might find your target audience better if you were to post this in the "Electronics" section. Best of luck.
My layout thread: viewtopic.php?f=22&t=50019

fourtytwo
Posts: 65
Joined: Mon Oct 31, 2016 7:41 pm
Location: Norfolk (Bodecia's country) UK

Re: Transformers and Lighting

Postby fourtytwo » Tue Dec 27, 2016 4:10 pm

Hello, I think wherever you post it you need to say a little more than just lighting, like what voltage are the lamps, what current or a link to the source website please :)
Does the pain of N gauge steam ever end!

Metroland
Posts: 45
Joined: Fri Dec 23, 2011 2:40 pm

Re: Transformers and Lighting

Postby Metroland » Tue Dec 27, 2016 4:31 pm

Hi

I dont have a source website, but the lights are 19v Beli ones right now.

User avatar
Dad-1
Posts: 4655
Joined: Sun Aug 24, 2008 7:05 pm
Location: Dorset - A mile from West Bay.

Re: Transformers and Lighting

Postby Dad-1 » Tue Dec 27, 2016 5:18 pm

I believe Beli were a German 'cottage industry' maker.
The trouble with all lighting is getting the required 'scale' results as all
too often they are far too bright. The intensity can usually be reduced
by reducing the voltage.
For an initial test you can try controller accessory outputs. These are often
AC and not usually a problem with filament bulbs. With LEDs it's a different
matter and that takes you into a different power supply. My station lighting
is LED and operating on 4.5 volts rather than the 12 - 16 volts they can take
and I use a 1 amp regulated switch mode plug-in power supply.

To be honest this would be better in the electronics section and I may move.
However in the meantime tell us what you lights are ? Not the make, but be
they filament or LED .... If you intend to mix you'll probably need 2 power
sources.

Geoff T.
Remember ... I know nothing about railways.
viewtopic.php?f=22&t=32187 and Another on viewtopic.php?f=22&t=28436&start=60&st=0&sk=t&sd=a

Metroland
Posts: 45
Joined: Fri Dec 23, 2011 2:40 pm

Re: Transformers and Lighting

Postby Metroland » Tue Dec 27, 2016 8:23 pm

Dad-1 wrote:I believe Beli were a German 'cottage industry' maker.
The trouble with all lighting is getting the required 'scale' results as all
too often they are far too bright. The intensity can usually be reduced
by reducing the voltage.
For an initial test you can try controller accessory outputs. These are often
AC and not usually a problem with filament bulbs. With LEDs it's a different
matter and that takes you into a different power supply. My station lighting
is LED and operating on 4.5 volts rather than the 12 - 16 volts they can take
and I use a 1 amp regulated switch mode plug-in power supply.

To be honest this would be better in the electronics section and I may move.
However in the meantime tell us what you lights are ? Not the make, but be
they filament or LED .... If you intend to mix you'll probably need 2 power
sources.

Geoff T.


Thanks for your reply. The depot buildings have the led's whilst the yard has the Beli filament bulbs. Please see picture. As a temporary measure, I wired them up to the 16 v output on the gaugemaster combi unit. But that is only temporary, and I cannot run everything off that?

I might end up with four buildings with led's.

I was looking for a transformer that could take all the lighting needs (or most of them) if such exists? But I can follow your idea for two different supplies.




Image

User avatar
Dad-1
Posts: 4655
Joined: Sun Aug 24, 2008 7:05 pm
Location: Dorset - A mile from West Bay.

Re: Transformers and Lighting

Postby Dad-1 » Wed Dec 28, 2016 9:51 am

It's so difficult to judge lighting in photographs, but it would seem that
perhaps the shed interior is rather overly bright.
Using the accessory outlet from a controller obviously draws some power
from that available for you track feeds. It depends on how many locomotives
you intend having live (If sound) and in motion at any one time. It may well
be that you can power the filament lights that way and use an adjustable DC
supply for LED lighting.

This is my regulated switch-able power supply for lighting.

Image

It supplies up to 1 amp which is enough for 50 LED lights of the type I'm using.
I can use on any layout. It comes with several different DC plugs, just find a
suitable socket.
I run most of mine on 4.5 volts, I've tried the minimum setting of 3 volts which
is just a little too subdued for my liking.

Image

Image

For an outlay of just £8.75 post free they are ideal, all you require is that additional
mains socket available.

Remember I'm a real numpty with electronics, like many I rely on Flashbang to make
sense of what I should be doing !!

Geoff T.
Remember ... I know nothing about railways.
viewtopic.php?f=22&t=32187 and Another on viewtopic.php?f=22&t=28436&start=60&st=0&sk=t&sd=a

User avatar
Flashbang
Posts: 3051
Joined: Thu Oct 18, 2007 12:07 pm
Location: SE United Kingdom

Re: Transformers and Lighting

Postby Flashbang » Wed Dec 28, 2016 12:41 pm

Hi
As suggested by Dad-1 (Geoff) a variable but regulated plug-in power supply is by far the simplest option. ebay has a good selection or a local electrical/electronic retail may well offer them too. Opt for one that has a minimum of 1.0Amp output available with a switched DC voltage range of 3 to 12 volts being the norm. Example... Link to typical PSU

Ensure any LED has a series resistor fitted on one of the two LEDs leads - doesn't matter which lead though. I use mainly 1K0 (1000 Ohm) resistors.

You will find you can probably go down to around 4.5 to 6.0 volts DC before the LED fails to illuminate.

Do ensure you have the correct polarity to the LED otherwise they wont illuminate.
If your Power supply has a selection of plug-in tips try to ensure you have positive onto the inner tube of the connector - use a DC voltage multimeter or LED with a series resistor to determine this. Once proved I then mark across the join of the connector and the plug with white Tippex or white paint etc. Then if they part company youre always sure of the correct realignment when reconnecting them again!

If you use the 2.1mm x 5.5mm tip, then one of these makes onward connection very simple to do... Link to 2.1mm connector
Broken? It was working correctly when I left it.

Metroland
Posts: 45
Joined: Fri Dec 23, 2011 2:40 pm

Re: Transformers and Lighting

Postby Metroland » Wed Dec 28, 2016 9:32 pm

Thanks for your help gents, I will follow your advice and let you know how I get on.


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