Lionel manual says you can activate whistle with Cab-1 on a 1995 engine.

You're right... that locomotive does not have any TMCC components contained therein.

I believe it was produced during the one-year or so time period where the only TrainMaster products in the marketplace were the CAB-1, PowerMaster and PowerHouse. The Command Base didn't come along until a year later.

Therefore, the manual likely makes the assumption that the CAB-1 was paired with a PowerMaster, meaning it was activating the whistle in conventional mode.

Hope this helps.
TRW

As you surely know, many post war engines had a whistle that was activated by a handle on the transformer that put a DC offset on the track. Then a few, maybe 622 switcher or 1615, had a bell.

In possibly the LTI time frame, engines were made with an electronic whistle and bell, one activated by a positive offset, the other by a negative offset.

The original PowerMaster does not put a pure DC on the track (technically, neither did the transformers). Instead if fired the triac earlier for positive going humps of the sine wave, and later for the negative going humps. But this was only when the PowerMaster was in conventional mode.

The early IC Controls also had this; but instead of a switch, you pressed some combo of buttons including the ones under the little door at the bottom, also used for momentum settings.

I am guessing the Legacy PowerMaster does the same thing, but I never put a scope on it.

Thanks for the replies,  I think I understand it now.  There has to be a Powermaster in the equation before the Cab 1 will operate the bell or whistle.

Doug