Will the PECO PL 11 Snap Switch work without some kind of capacitor? Seems if they sell it like that it should work. Does it connect to DC Accesory or AC on the power pack?
Gary
Peco turnouts have a built-in spring that holds the points solidly against the stock rails. But, this spring requires more power than other turnouts to overcome the spring tension.
If you have enough power, either AC or DC, to drive the PL-11 switch machine, you will be fine. However, if you're used to driving less demanding machines like Atlas, you may find that what you're using isn't enough. This is particularly true if the turnout is some distance from your power supply or control panel, because the long, usually-thin wires also eat part of your power.
A capacitive discharge (CD) circuit is highly recommended for any twin-coil machine like the Peco or Atlas. Not only does it deliver more power on demand, it also protects the machines from the common problem of a sticky toggle switch or push button. For most layouts, a single CD circuit is sufficient for all the twin-coil machines you've got.
You can one pre-built (the Circuitron "Snapper" is one) or you can build one with a few Radio Shack parts.
It takes an iron man to play with a toy iron horse.