8
votes
Accepted
Classic 9V battery box current limiter?
The short answer is about 150mA.
Electrical Characteristics
From the limited testing that I've done, the component you pointed out appears to be a positive temperature coefficient thermistor. Here's ...
- 39.8k
6
votes
Looking for older conducting train tracks
Such place indeed exist and it is called Bricklink, a website dedicated to trading LEGO items. It has extensive history and great catalog of LEGO items found on the internet. Prices and quality are, ...
- 22.4k
6
votes
Electric train set not working - even though the light is on
The speed regulator light being on is a good start. It looks like you have things set up correctly as far as I can tell.
The first step is to identify which part is having issues. All of these parts ...
- 39.8k
4
votes
Electric train set not working - even though the light is on
If there is a suspicion that the metal surfaces have developed dust and grime or any other insulating layer, a solution would be to give the tracks a Brasso (or other metal polish) wipe and quick ...
- 141
3
votes
Accepted
Repairing disintegrated old 9V wire
MindS1 is correct that in terms of electrical properties you don't need to be terribly picky. As you noted you will want multicore wire to allow for flexibility and prevent breakage.
I'd also add ...
- 39.8k
2
votes
Accepted
Can 9V train motors be linked and work together via the top power stud connection?
The basic premise of your idea is sound: the metal-wheeled train motor can indeed receive power from the track and forward it to the studs on top of it. Then an extension wire can be used to power ...
- 15.6k
2
votes
Accepted
What is the maximum voltage for motors from Cybermaster units?
I don't have this set, so I can't provide a fully authoritative answer, but 9V is likely to be safe for these motors. The hub that drives them is definitely 9V, as it connects with the rest of the 9V ...
- 39.8k
2
votes
Repairing disintegrated old 9V wire
You don't really need to worry about the wire gauge for Lego parts.
This source indicates that only the beefiest lego motors breach 1A, and even then, only while completely stalled. Most of those ...
- 1,352
2
votes
9v Regulator Power Question, 1 enough or multiple?
It is never a good idea to electrically connect two regulators to the same piece of track. You could damage both of them!
I assume you are referring to voltage drop (and thus reduced power when the ...
- 221
Only top scored, non community-wiki answers of a minimum length are eligible