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Reply to "PS3 upgrade information."

I was talking about the external harnesses.

 

For PS-2 3V Steam upgrade you have 2 harnesses.  An internal Engine harness and for the tender a combined internal and external harness.  Very similar to production Starter set engines except one piece.

 

But for PS-3, if you wanted to create a PS-3 steam upgrade kit, you would need to manufacture a new combination tender harness, since PS-3 OEM use draw bars.

 

For the engine you also would need new type harness.  From PCB to the boiler board and from the board to the engine components.  All this would have to be made specific for an upgrade kit.  Basically starting from scratch and requiring dedicated multiple harnesses.  Do you want to keep it simple and inexpensive or make it more complex.

 

Adding a MUX requires the MUX harnesses, mounting board for the engine.  You also then need the MUX board and mux harnesses for the Tender.  So you add 2 boards and mounts, extra harness.  Can you scratch build it, all to control one more light feature?

 

You don't get independent control of all those features.  If you turn off headlight markers go off too.  The interior and Firebox are the same circuit.  Frankly, a lot more expense for one extra feature control.   G

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