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Can the MTH HO scale PS3 system be used in O Scale? I am not looking for smoke or electro-couplers.  I would like to use it to control a pair of MP54s, where space is very limited.  Does the HO Scale system use the same timing tape/tach reader architecture?  Estimated current draw is under an amp.

Last edited by John Sethian
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Thanks H1000!  I found an F7 operators manual, and it confirmed your statement

Presumably adding a rectifier/capictor will take care of that.   Was that eliminated on the HO Scale boards to save space?

As for the operating voltage, the MTH HO Operating manual also states

"About 16 volts DC is adequate for prototypical speeds however, your engine can handle up to 24 volts DC if you feel the need for speed!"

As for the current draw of the locomotove, the manual states 23-650 mA.   That is not a limit, just what the loco draws.   I'll habe to measure the current draw of my MP54s to se what they require

Last edited by John Sethian

MTH made 245 different models of HO engines that can run on AC (or DC) power vs 671 models that run exclusively on DC power. These AC compatible engines are known as PS3E+ models and product number will end in -5 vs. the -1 that is typically seen.  The PS3E+ engine have a DCC / DCS Switch that will need to be set if you plan to run on AC power.

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