Help me get this whistle/horn to work

Try to swap your track leads.

You don't mention transformer.

Post war triggers on POS. OR NEG. Offset.

Modern boards get picky, POS. Is a whistle trigger, negative is for bells. (If the board has a bell, hold the button for about 3 seconds and hear a bell as is.)

Some boards don't like original PW whistle control and work better on diodes. (Pretty Cheap & easy)

Visa versa as well.

Sorry, I didn't give enough info. The whistle controller is a Dallee that came with the whistle/horn, and it worked fine as in the video. Now the whistle/horn board just heats up. The transformer is an old American flyer with no extra gizmos on it. That's the thing, it worked. All I did was put the cover on and run it with an engine. 

I think I'm going to have to call Dallee Electronics and ask them.  

If it making heat instead of sound, it is all over... You may get lucky if you can replace the transistor or whatever component is heating up, but it probably got fried. That is why it is important to have good breakers/fuses and TVS diodes in place.

Which AF? I get some funky offset spikes from my 18b. I think it's the Deadman handles and arms various metals and contact block as a combo. Very sensitive whistle relays and all of my O boards blow whistle and bell at random with it. I love it, but don't run electronics on it.

"Feeling" the difference in similar outputs , sweeps, and different windings, etc of AF, Marx, & Lionel is interesting. I think Marx and AF overstated output power or Lionel understand it. 

That sounded like a diesel or electric... What's the noise other that bell?

Maybe a chip loosing it's mind? I heard a bell no whistle.

How did  you trigger the bell or try the whistle?  I thought AF used something different tbàn Lionel , like offset voltage for whistles (frenquency?) My 18b has no whistle control so I thought it was a inline wired accessory, piggy backed frq. time bias for af

You might want to try it on another controller/transformer.

I did not review the Dalee specs in the slightest. Link?

Calling them is best. Show the video to them too.

TVS sure don't hurt.