Will the whistle/bell buttons on the MTH Z-4000 activate the whistle & bell on the LTI 1990 scale Hudson WITHOUT the use of the activation button supplied with this loco? 
My best guess is yes?
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Anyone?
PS: THANKS in advance! 
Tinplate Art: It is my understanding that the included whistle/bell button is for those who have older transformers that do not have a separate bell button on the transformer. And if you have an older V or Z transformer that has neither whistle/horn or bell button, then two (2) of the buttons are used in series to give you the appropriate signal to trigger the whistle/horn or bell. So the MTH Z4000 should operate the sounds. Just remember that these things are polarity sensitive and if it does not work at first, try reversing the wires that go to the track lock-on. Dennis M.
Dennis M:
THANK YOU for the info - I suspected as much!
