12-11-2014, 09:22 PM
Any AC motor should work on DC. What happens is that the field magnet is an elecromagnet and the poles flop back and forth 60 times a second, just as the poles on the armature fop back and forth. If you run it on DC, the poles do not flop, but the armature poles cycle as usual.
Now, the electromagnet motor has to have the field magnet reversed for the armature to run in the other direction.* There is a contraption in the loco that does this. In Lionel it's called an E-unit. If you replace this with with a bridge rectifier, it will set the field magnet the same way at all times and you can change direction by reversing the armature, using track power.
*(Of course, they may have done it bt reversing the armature poles...)
That's the easy part, compared to changing the wheels, dropping the 3rd rail pickup, ...
Now, the electromagnet motor has to have the field magnet reversed for the armature to run in the other direction.* There is a contraption in the loco that does this. In Lionel it's called an E-unit. If you replace this with with a bridge rectifier, it will set the field magnet the same way at all times and you can change direction by reversing the armature, using track power.
*(Of course, they may have done it bt reversing the armature poles...)
That's the easy part, compared to changing the wheels, dropping the 3rd rail pickup, ...
David
Moderato ma non troppo
Perth & Exeter Railway Company
Esquesing & Chinguacousy Radial Railway
In model railroading, there are between six and two hundred ways of performing a given task.
Most modellers can get two of them to work.
Moderato ma non troppo
Perth & Exeter Railway Company
Esquesing & Chinguacousy Radial Railway
In model railroading, there are between six and two hundred ways of performing a given task.
Most modellers can get two of them to work.