 Joined: 25/08/2018(UTC) Posts: 1 Location: Al Qahirah, Cairo
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Hello everyone,
I have a large DC model using Roco track and Marklin central station as my DCC control unit.
I have some Marklin and Roco wagons which I bought from a flea market, yet I do not know if they have DC or AC wheetsets.
In this regard, I have several questions:
1- How can I differentiate between DC and AC wheelsets?
2- What is the worst that can happen if I put an AC wagon on my DC track?
Thanks a lot
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 Joined: 04/04/2013(UTC) Posts: 1,291 Location: Port Moody, BC
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Originally Posted by: Amr  Hello everyone,
I have a large DC model using Roco track and Marklin central station as my DCC control unit.
I have some Marklin and Roco wagons which I bought from a flea market, yet I do not know if they have DC or AC wheetsets.
In this regard, I have several questions:
1- How can I differentiate between DC and AC wheelsets?
2- What is the worst that can happen if I put an AC wagon on my DC track?
Thanks a lot If you have a multimeter check the resistance between the 2 wheels. If you have 0 resistance it is an AC wheel set. If you have a high resistance it is a DC wheel set. If you don't have a multimeter you can usually see an insulated bushing on one wheel of the DC wheel set. If you put an AC wheel set on a 2 rail DC track you will create a dead short. Peter
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 2 users liked this useful post by PMPeter
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