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Recently I acquired a great set of RK MU cars.  I do not have DCS and I operate conventionally.  I am currently operating with an ancient Lionel 167 reverse and whistle controller and a Lionel bell controller button. I had the unit checked at an MTH repair station and it operates flawlessly.  However at home with my clunky old bell and whistle controllers I get unrelible and herky-jerky operation.  Is there anyone offering a new bell and whistle controller?  BTW I am operating with an ancient Lionel Type V transformer that does not have a whistle control.  Odd-d

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If you're a bit handy, you can roll your own.  All you need is a couple of SPST pushbutton switches and a handful of 6A diodes.  Mine has binding posts, but you could just run the wires out and connect directly.

 

You'll note the switches are larger than I specified, but they were available in my parts box, I obviously only needed the SPST I mentioned.

 

Susan, that's not quite the same as my box, it only offers a single function, either whistle or bell.  My goal was to have both in the same box.  I could have added another button for a direction button, but since that's on every transformer, I didn't bother.  One addition I didn't do but would recommend for modern stuff is a TVS across the outputs.

Originally Posted by gunrunnerjohn:

Susan, that's not quite the same as my box, it only offers a single function, either whistle or bell.  My goal was to have both in the same box.  I could have added another button for a direction button, but since that's on every transformer, I didn't bother.  One addition I didn't do but would recommend for modern stuff is a TVS across the outputs.

I like it. Did you use momentary toggles, not that it makes a big difference. Couldn't find Lionel's 5906 on their web site but this is much better. Nice!

Originally Posted by Odd-d:

GGG----I really don't want to buy such a big transformer just to run one train.  It would be so sad not to have use for all the power and other features available in such a big unit.  But thanks anyway for the suggestion.   Odd-d

Understood, but the Z-1000 is just a 100W transformer, smaller then your V.  They also make Z-750 which are 75W.  The Z-1000 would be good for Post War engines also.  G


 

Originally Posted by og fan:

GRJ.  just curious, whats the reason the diode string it tapped into between diode 4&5 rather than a direct jump over ?

Because that's the way it works!

 

The diode strings when you don't have any buttons pushed just drop the AC voltage, typically by about .6V for each diode.  When you push one of the buttons, you short out four of the diodes and introduce a DC offset of around 2-2.5 volts.  The polarity is dependent on which button is pushed, hence the plus or minus for whistle or bell.

 

If you shorted all the diodes out, you'd create plain DC on the track, that's not what you want, you have to leave at least one diode in the mix.

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