DC - Electrical

messinwithtrains's picture

LED locomotive headlights

I know this is a very simple question, but I'm totally addled when it comes to anything electronic-related

I want to convert my DC locomotive headlights from campfire-in-the-cab bulbs to LED's. Do I want to use 3mm bright-white LED's with 470 ohm resistors?

My plan is to paint the inside cab roof black, cut an LED into the plastic light inserts, and add a styrene "ceiling" under the light to prevent light leakage. Is that the "standard" method?

All advice is appreciated.

Jim

edfhinton's picture

Phew... Fooled myself. Thought I had a short...

So I haven't had as much time to finish wiring the staging the past week as I anticipated.  But I had a little time this morning so I was able to finish soldering about half the remaining staging feeders to the track and to the bus.  I did some of it, checking for continuity with each feeder. All good.  About half way through what I did today, I also checked for shorts. Still good.   Hooked up the power to the bus and tested the track with an engine.  Working great. Removed the engine and went back to soldering.  

geoffb's picture

Scale Model Animation 7 – Just for Fun! Smallest Scale Model Animation Ever?

Model animation—bringing models to life—adds enormously to the interest and enjoyment of any layout or individual model! This entry demonstrates the use of a different type of LED lighting that most people likely have not considered. It also may be the smallest scale model animation ever?

Waiting to Complete the Last Move of the Day

OSCR's picture

Condo/Loft with a model railroad

In my first post I talked about moving to a smaller space, a condo in Toronto with my girlfriend and how I could accommodate my passion that is my model railroad, the Ontario South Central. Well, we found a lovely place. Its an open concept loft style condo. We fell in love with our brand new living arrangement instantly. The main living room, dining and open concept kitchen is a good size for the price in Toronto at 20' x 12'. After signing off on the place I was thinking, how would I instill my passion for model railroading in this place? 

Tortoise Switch Machines, Replacing Power Pack with DC Power Plug

Replacing my power pack with a simple DC power plug to power my tortoise switch machines. (Each is connected to a central DC power bus) 

Is this just a straight forward connection to my DC power bus, (either soldier or terminal strip), or is any special wiring and/or additional accessories needed?

Thanks,

Joe

edfhinton's picture

Testing individual feeders?

So today I started working on the feeders for my under layout staging.  This is my first time soldering feeders to track, so each set of feeders is more practice.  I drilled holes trackside since it will be hidden staging and so visible wires aren't an issue.  With each feeder I think I get a little bit better at it, though a couple of the feeders I had to do-over. 

Finding a power supply

Good evening to all,

Need some help in locating a source for a 5 Volt AC power supply in a one or two amp range I am not having too much luck locating one and could use some assistance.  Any ideas?

 

Thanks

Andy

kfglover's picture

Athearn Blue Box GP38-2 truck to frame arcing

I purchased a couple of mixed lots of HO equipment at auction. In this "stuff" there was a GP38-2  dummy and a powered GP50. I wanted the ROCK painted GP38-2. The BN GP50 had no details with it. After some research it appeared I could take the motor and power trucks from the GP50 and put it into the GP38-2.

Wiring CVT or Proto87 Superfine HO scale turnouts

I need some guidance and help on how to wire these turnouts for DC.

Any advice or tips would be appreciated as this will be my first attempt at doing so.

nbrodar's picture

Interlocking Tortoise Switch Machines

I have a location where the diverging move of one turnout (A) crosses the straight move of another (B)  and will be using Tortoises to control them.

When A is set to diverge I would like B to automatically move to diverge also.  When A is set for straight, I would like to retain full control of B.  

I had two thoughts.  Either use the contacts of Tortoise A to interlock Tortoise B or use A's control switch to interlock B's control switch. 

Any ideas, brilliant or otherwise to accomplish this?

 


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