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I am a relative newbie to O gauge and primarily an operator of Lionel Legacy, TMCC and conventional locomotives who has recently acquired some MTH Proto 2 and Proto 3 engines. I am very new to MTH and DCS but have read Barry Broskowitz book.  I have two new Lionel ZW-L transformers and Lionel's Legacy base to be installed on my new layout, which probably will be wired in a home run configuration. My question is this, can Lionel's New ZW-L transformers be used with MTH's DCS TIU. Lionel has not yet answered my inquiry about their use and asking if they clip the sine wave for power control etc. If anyone has any knowledge or advice as to if they may be used with the DCS TIU and how to wire them (TIU fixed or variable outputs)  and which mode to set the transformers in, command or conventional, I'd really appreciate it.  The intent is for the two ZW-Ls to power 4 independent loops with the A & D throttles of each transformer and the inner throttles to power the turnouts and accessories using Lionel's Legacy/TMCC and conventional capability with DCS (the 620 watts each should cover me very well). Thanks for your help guys, I've learned a lot from your forums already!

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Thanks for your reply Barry! I really liked your book it's been a big help! Lionel did finally get back to me but not very informative, they wouldn't say if their ZW-L clipped the sine wave or not. The did say to set the transformer in conventional mode if using the TIU though. My question for you is if the ZW-L clips the sine wave ( I think it does) in-order for me to maintain conventional control of my older loco's on their track loops and have DCS or Legacy on the other loops which connection to the TIU from the transformers would be best, the fixed input or the variable. Thanks!

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