Lionel Bricks, TIU question

I can only tell you my own experience.   On my old layout which I just tore down to rebuild I had two 135 watt bricks powering a modern ZW through a TIU and had no issues with my MTH engines as well as a conventional Lionel PRR Flyer and at one time the Lionel Missile Launch engine.  

You can also wire your layout to still use the handles of the ZW if you would like.

- Greg

Greg, were your MTH engine PS1 or 2?  I may be wrong, but I believe early QSI sound systems ( like the one in the weaver engines & some early PS1) have issue with a chopped sinewave.   I thought about keeping the ZW wired to the track even if I use the bricks, in case I want to go old school

why was the post moved - I didn't mention running in command mode at all. this is strictly conventional for now. If anything, I would be using the DCS features from the TIU, which is why O posted in teh genral forum b/c it deals with  DCS, conventional & the power bricks from Lionel 

Christopher2035 posted:

why was the post moved - I didn't mention running in command mode at all.

Just a thought,,,,,,you DID state "TIU" in your title.

this is strictly conventional for now. If anything, I would be using the DCS features from the TIU, which is why O posted in teh genral forum b/c it deals with  DCS, conventional & the power bricks from Lionel 

Maybe this should be on the Electrical Forum?

To answer the question, any transformer connected to the TIU variable channels and controlled in variable mode will have a chopped waveform, that's how the variable channels control the voltage.

Hot Water posted:

Christopher2035 posted:

why was the post moved - I didn't mention running in command mode at all.

Just a thought,,,,,,you DID state "TIU" in your title.

this is strictly conventional for now. If anything, I would be using the DCS features from the TIU, which is why O posted in teh genral forum b/c it deals with  DCS, conventional & the power bricks from Lionel 

Maybe this should be on the Electrical Forum?

 

yeah - i just wasnt sure where to put it  

gunrunnerjohn posted:

To answer the question, any transformer connected to the TIU variable channels and controlled in variable mode will have a chopped waveform, that's how the variable channels control the voltage.

So I can expect to have issues with the QSI sound Weaver engines then, correct? or is it just the CW80 being a CW80?

It's hit or miss.  Many PS/1 engines run fine, but older ones and some QSI has issues with chopped waveforms.

I guess I'll just have to check it out. I can always convert one of them to TMCC

I tried one of my weaver engines on a freinds layout last night. Ran fine using a Z4K & also via DCS on the vari output with a 135W brick. So it looks like I'm good on that end as well