Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with trains
Search options answers only
not deleted
user 4290
A popular choice among AFOLs for building their own creations, Trains are now a sub-theme of LEGO City.
2
votes
What was the 12v AC socket for on the 7864 transformer?
I think it's for test purposes if the fixed and/or regulated 12VDC outputs don't work anymore.
This output is fixed 13VAC so it might be directly connected to the secondary coil of the transformer bef …
- 1,192
2
votes
Wiring diagram of this blue 12V switch?
In electrical engineering one might call it:
DPDT (Double Pole Double Throw) Momentary (On)-Off-(On) Reversing Polarity Toggle Switch.
Momentary in this configuration means that it's spring loaded …
- 1,192
1
vote
What was the 12v AC socket for on the 7864 transformer?
The AC output might be useful for blue era switch points. I guess this is how the transformer is built:
- 1,192
6
votes
Accepted
How did the LEGO 7862 Remote Controlled Decoupling and Signal work?
It basically forces the coupling magnets to separate via the pins pointing downwards from the magnet holders:
Here's a demo.
- 1,192
5
votes
Accepted
Will playing with a 12V train motor by hand damage it?
As you can see in the picture below the friction has to do with driving the worm wheels via regular gears while pushing the unit by hand and yes, I guess the gear teeth on the wheel axles could be dam …
- 1,192
7
votes
Accepted
What prevents a 12V motor, when pushed by hand, from providing DC electric out?
The 12v train motor uses 2-pole 3-slot technology.
Because of thinner, but longer wire which results in a greater resistance and will create higher voltage, but lower current the current output i …
- 1,192
10
votes
How to build bridge using 4.5/12v train rails from 1969 Lego brochure
I just built the bridge yesterday. I didn't have all the parts so had to be creative at some points.
I'll improve some joints once I picked up more of my Lego at my dads' place.
Very funny project!
…
- 1,192