What does this capacitor do? Is it the "death cap"?

[Austin]

I don't understand the purpose of th c13 and c14 in the schematic here: http://circlotron.tripod.com/a30e.pdf

Seems to connect the chassis to the mains with capacitors, is that right if so, why? Thanks

[Austin]

Here is another example of this, what is it for? Klausmobile Mammoth I - An Atma-Sphere (r) Inspired OTL Amplifier

[Enzo]

Keeps noise from the power lines out of your system.

[tedmich]

heres a good thread, including essential Enzo content, on the "death cap"
Replace Death Cap with Safety Cap?

[Austin]

Thanks you guys.