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dccwiki.bsky.social
DCCWiki
@dccwiki.bsky.social
180 followers 60 following 540 posts
DCCWiki, an online reference for NMRA Digital Command Control for Model Railroads.

Created by volunteers for the modelling community.

Plus other interesting things related to technology, because we should not forget how we got to where are today.
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trainshows.net
New model railroad open house added:
High Wycombe & District Model Railway Society Open Day
@hwdmrs.bsky.social
September 21, 2025
10am-3pm
11 Duke Street
High Wycombe, Buckinghamshire, UK
High Wycombe & District Model Railway Society Open Day Information on TrainShows.net
High Wycombe & District Model Railway Society Open Day at 11 Duke Street in High Wycombe, Buckinghamshire, UK on September 21, 2025. Learn more at TrainShows.net.
trainshows.net
June 3, 2025 at 6:30 AM
Reposted by DCCWiki
merzysuperior.bsky.social
You would think it would be easy to model a place with very little vegetation but I am finding it difficult. I am working on a nickel mine region, modeling the year 1985 outside of Sudbury, Ontario where nothing grew.
An overhead view of an HO model railroad section with an ore loading area, a small railway shed, an overhead bridge, seven tracks and three switches. Ore spills, rock outcrops and lack of vegetation dominate the scene.
June 3, 2025 at 6:15 PM
dccwiki.bsky.social
Analog Conversion is a Power Conversion Mode supported by most Multifunction Decoders. It's an optional feature. DCC signals will damage coreless motors.
#modelrailway #modelrailroading #modeltrain #modeltrains
dccwiki.com/Power_Conver...
dccwiki.com
June 3, 2025 at 9:09 PM
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torailwaymuseum.bsky.social
Jun 2, 1995: CN's old electrics operate for the last time on the Montreal-Deux-Montagnes commuter line through the Mount Royal Tunnel. The equipment included Z-1-a, Z-4-a and Z-5-a electric locomotives; EP-59a and EP-69a electric multiple units and balloon-top coaches. 1/3
A group of CN train crew members and railfans stands on the platform at Montreal Central Station next to CN Z-1-a electric locomotive No. 6710 after its final run through the Mount Royal Tunnel on June 2, 1995. Photo via Wikimedia Commons.
June 3, 2025 at 1:13 AM
dccwiki.bsky.social
#modelrailway #modelrailroading #modeltrain #modeltrains
www.youtube.com/watch?v=ItRn...
1975: MODEL RAILWAYS - All You Need to Know | Model World | BBC Archive
YouTube video by BBC Archive
www.youtube.com
June 2, 2025 at 2:11 AM
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warpedhorizon.bsky.social
The largest cylinders ever fitted to a steam locomotive were the massive 48"x32" low pressure cylinders on the Virginian Railway's Class AE 2-10-10-2. The high pressure cylinders were also huge at 30"x32". Otto Perry captured #801 at Roanoke VA in 1932.

digital.denverlibrary.org/nodes/view/1...
A black and white photograph of a massive articulated steam locomotive. The cylinders are huge, and the boiler even bigger.
May 31, 2025 at 12:52 AM
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assrailroad.bsky.social
I don't know if Al Kalmbach would be rolling in his grave, crying or laughing that the biggest change in environmental law in a generation was because his magazine became a foamer gossip rag.
May 31, 2025 at 4:32 AM
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loudmouth1934.bsky.social
After almost 3 years out of service and a lot of research, paranoia, and soldering...

IT'S ALIVE
May 29, 2025 at 2:40 AM
dccwiki.bsky.social
Why do so many modellers rely on a $0.50 light bulb to protect their expensive DCC systems & locomotives when proper short protection is available?
Pay now or pay later, your choice.
#modelrailway #modelrailroading #modeltrain #modeltrains
dccwiki.com/Short_Circuit
Short Circuit
A Short Circuit gets its name from the electrical energy finding a shortcut, an easier path from one side of the power supply to the other.
dccwiki.com
May 29, 2025 at 8:56 AM
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oldinprintads.bsky.social
From America, May 1949: Red Cap Ale ad from Carling's

«CARLING'S Red Cap ALE»
An advertisement featuring a bottle and glass of ale alongside a model train under construction. The ad promotes a blend of hobbies and the enjoyment of ale. CARLING'S Red Cap ALE FULL 12 OZ For 109 years in Canada, now a product of U. S. A., too. Somewhere close by is a man who knows how to enjoy a hobby and a wonderful glass of ale, too. Enjoy the full, delicious flavor of this light, bright, golden ale ... Let the jolly Red Cap remind you to call for Carling's.
May 28, 2025 at 7:37 AM
dccwiki.bsky.social
Next18/Next18-S, designed for installation in tight spaces such as #TTScale & #NScale applications. It has very strict definitions for its dimensions.
#modelrailway #modelrailroading #modeltrain #modeltrains
dccwiki.com/Locomotive_I...
Locomotive Interface/Next18
dccwiki.com
May 28, 2025 at 9:25 AM
dccwiki.bsky.social
www.youtube.com/watch?v=37I0...
The Rise and Fall of Model Trains | How Lionel Ruled American Childhood
YouTube video by Industrial Craft
www.youtube.com
May 25, 2025 at 9:34 PM
dccwiki.bsky.social
DCC Multifunction decoders don't use DC to drive the motor. They create a Pulse Width Modulated signal to control direction & accurately maintain the desired speed.
It really is simple! Repost: spread the word.
#modelrailway #modelrailroading #modeltrain #modeltrains
dccwiki.com/Pulse_Width_...
Pulse Width Modulation
Pulse Width Modulation (PWM) enhances motor control. Instead of applying direct current (DC) to the motor, a series of pulses is employed. These pulses reach their maximum power for a brief period. Va...
dccwiki.com
May 23, 2025 at 1:21 PM
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davidmccormackphotography.ca
Avanti West Coast heading to Euston.

📆 2025-04-28
May 23, 2025 at 1:06 PM
dccwiki.bsky.social
If you have the May 2025 issue of Railroad Model Craftsman, there is an article on the construction of the S Scale mode in brass.
May 23, 2025 at 2:37 AM
dccwiki.bsky.social
Not sure what it is a Program Track. but many seem determined to wire it to ensure damage, so here is the proper way to wire one.
Program Tracks work in Service mode, so the decoder's address is irrelevant.
#modelrailway #modelrailroading #modeltrain #modeltrains
dccwiki.com/Programming_...
Wiring a Programming Track for DCC
A Programming Track safely programs Multifunction Decoder using Service Mode Programming. It’s easy to have a portion of your layout’s track double as a programming track.
dccwiki.com
May 22, 2025 at 11:35 AM
dccwiki.bsky.social
#modelrailway #modelrailroading #modeltrain #modeltrains
www.youtube.com/watch?v=U_ZR...
Locomotive Undercarriage
YouTube video by Brian Sharer
www.youtube.com
May 21, 2025 at 11:56 PM
dccwiki.bsky.social
www.youtube.com/watch?v=CnA0...
Atlas H15-44 DCC install
YouTube video by Solo Contracting
www.youtube.com
May 21, 2025 at 9:07 PM
dccwiki.bsky.social
www.youtube.com/shorts/uyiuY...
HO Southern Pacific Dome-Lounge First Look!
YouTube video by rapidotrains
www.youtube.com
May 21, 2025 at 11:34 AM
Reposted by DCCWiki
johnmaddening.bsky.social
More photos from Tetsudoukan Cafe & Rest Bar in Osaka, which is a combination restaurant/model railroad/cat rescue. Well worth the trip.
@sithlet.bsky.social holds hands with a tired cat laid out on a model railroad Cats perch and sleep in a model railroad display in the window of a cafe while passersby watch A cat on a shelf in back that has not been nice enough to meet with cafe visitors. A sign below his space says (in English) “There is a possibility of injury.” A cat laying down on a model railroad display, resting his head on and paw between buildings
May 20, 2025 at 12:19 AM
dccwiki.bsky.social
An oft repeated myth is that OPS mode will program all the locos on your #modelrailway. True, if you omit the address of the decoder to be programmed.
#modelrailroading #modeltrain #modeltrains
dccwiki.com/Decoder_Prog...
Programming DCC Decoders
To function appropriately, configuration is essential for Multifunction, Function, and Accessory Decoders. Configuration involves setting appropriate values into the configuration variables (CVs) with...
dccwiki.com
May 20, 2025 at 1:31 PM
dccwiki.bsky.social
Turntables are another interesting feature on a #modelrailroad.
They can be a centerpiece of a #modelrailway engine servicing facility.
#modelrailroading #modeltrain #modeltrains
dccwiki.com/Turntables
Turntables and DCC
A turntable consists of a short section of track mounted on a bridge that is sunk in a pit, placing the bridge at grade. The centre of the bridge is a pivot that allows it to freely rotate. As the bri...
dccwiki.com
May 19, 2025 at 2:26 AM
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charliefrom215.bsky.social
Presented without further comment
May 18, 2025 at 6:39 PM
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torailwaymuseum.bsky.social
May 17, 1930: the Canadian Locomotive Company delivers No. 7700 to CN, the first diesel-electric switcher ordered by a Canadian railway. Most of the locomotive's internal diesel-electric components came from the Westinghouse Company; assembly was done at CLC in Kingston. 1/2
Canadian National Railway diesel locomotive No. 7700, a short, squat black locomotive with a pair of four-wheel trucks and an operator's cab at one end. Canadian Locomotive Company builder's photo, Canada Science and Technology Museum collection.
May 18, 2025 at 1:41 AM