Reply to "PSX1-AC"

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@gunrunnerjohn posted:
If the PSX-AC isn't on the output of the TIU, no choke is needed, it's already supplied by the TIU input circuitry.

John,

I guess that is the first time I heard that. While most of my track power has the TIU in passive mode, the power going to the yards goes through the TIU. I have been putting together PH - PM - PSX - Choke - TIU - TVS/Distribution Block - TVS/track setup.

So I really do not need the chock in this setup? Plus, an earlier comment by you on the effects of multiple TVSs makes me think I don't need the TVS at the distribution block. So, this is a better setup?

PH-PM/other transformer - PSX - TIU - DB - TVS/track.

My own testing showed the choke is needed in the TIU passive mode setup, so it is staying.

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