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I had this power master that has been unused for a few years (sorry at work, can't provide the lionel number) that I hooked up last night to provide better control over a conventional trolley loop.  After several tries the unit was finally addressed and I was able to use the CAB-1 to control power to this loop.  What I have found is the whistle and bell buttons have no effect on the three trolleys that would be used on this loop.  One is a WBB Peter Witt, the other two are MTH pcc cars, a proto 1 and proto 2.  With the proto 2 pcc the station sounds play continuously, the bell sounds randomly but pressing the bell button or whistle button on the CAB-1 has no effect.  Speed and direction however work fine with the CAB-1, in fact much better than with the walk around control.  All whistle and horn functions work well if the power master is removed from the equation.  Transformer is a MRC 270 watt with the walk around controls.  My desire is to be able to use a CAB-1 for the entire layout and as far as I can see the only here is the insertion of the power master.  Am I missing something obvious?  

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I can't speak for the WBB, but the MTH locomotives do not work correctly with the TMCC PowerMasters.  You're lucky to get them moving at all.  The MTH PS1 locomotives I tried with a TMCC PM wouldn't even leave reset.  gunrunnerjohn has said you can add a cap to the outputs , so can tell you what cap you need to add to the output of the PM to get the MTH locomotives to work.

Your PM-1 will work fine with most of your equipment, but you need a pure sine wave power source for it - the MRC is a very "dirty" AC power supply for use with modern electronics. Use any handy original postwar style transformer to test it(throttle set to 18 volts or highest setting, or fixed voltage - my favorite is the 20v D-U fixed voltage posts of the KW), then pick a spare/unused unit or a PH--1 brick for a permanent setup.

Thanks all, I have learned something.  What I think I will do, since this will be just a single loop running only one trolley at a time is connect a MTH brick to the powermaster as a supply source until I can get to a Radio Shack for a capacitor.  I have an unused brick from a Z-500, that should be more than enough power.   

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