How viable would it be to get some 12v parts.

[Electricsteam]

I'm really tempted to purchase a loop of the 12v gray track / train and well electronics for it.

How viable would it be to purchase those? Would it be worth the money for the all of it?

I spent an arm and a leg for a set 112 Starter train with Motor(?) last year and I would really like on of each generation of Lego train...

Are there any problems with the older systems? Any restrictions?

[bricks n bolts]

12v is great fun. All the electronics are still good.The transformer, remote switch motors, train crossing and traffic lights that stop the train are great, but don't bother with the automatic decoupler as it doesn't work well. The only thing I don't like about it is the outer track as it can discolour, becomes a bit brittle with age and is not as great as 9v/RC track/wheels for friction. So my current system is more of a hybrid with RC track/wheels/motors but still on 12v middle rails, works for most things apart from switch tracks where there is no alternative but to use the original outer tracks. I'll make a post soon about how I add the curved rails. The switch track turns are also very tight compared to 9v/RC switches, wish I could think of a simple alternative / way to to use the RC switches

[LEGO Train 12 Volts]

Great idea ...the 12 volts system is less expensive than the 9 volts and remote stuff are amazing!

[EdwinWesterhof]

I started with 12 volt blue track, because when i started that was the track i could get plenty of, for a good price and never had any regrets. I always wanted a Lego train as a kid. I know the gray tracks look better, but i got used to them .

Only had to repair some wiring and everything works great.

[dr_spock]

I have some old gray tracks. One thing I found is the clips on the dark gray 2x8 tie plate can get fragile over time and break off. I think you can also snap the 12V power rails onto the current PF tracks and run 12V trains.

[Electricsteam]

I have some old gray tracks. One thing I found is the clips on the dark gray 2x8 tie plate can get fragile over time and break off. I think you can also snap the 12V power rails onto the current PF tracks and run 12V trains.

Hmmm. I thought there was some problems with that... or the blue kind. They had some bits and bobs on the bottom that made it hard to do so.

[bricks n bolts]

Hmmm. I thought there was some problems with that... or the blue kind. They had some bits and bobs on the bottom that made it hard to do so.

Yes, it's only possible without modification for straight grey power rails, curved grey and both straight and curved blue require modification. The modification isn't difficult but is a bit time consuming, as you basically have to file the additional plastic bits away on the underside - makes for no visual difference when attached to the track and doesn't affect gripping power.