For a modern transformer, I like simplicity and the CW-80 works perfectly for me on all of my engines and most of my whistles. However, the problem with many of my PW whistles is that, if I'm diagnosing this correctly, the solenoid's trigger voltage increases as the component ages, and the whistle button can't trigger those whistles. That's where my postwar KW comes out on top, since it has a whistle lever that allows me to control how much power the whistle gets, while also peaking at a higher voltage, and those stubborn whistles that were growly with the cw-80 now sing with the KW. So I find pros and cons to both. CW-80 has the adjustable accessory voltage. KW has better whistle control. Both can provide more than plenty of power to run my PW TRAINS.
If anyone has a better explanation as to why my whistles do what they do please correct me, I'm still learning.
