Where to the electrons go from the CRT face?

[DavidGoncalv]

Been wondering this for a long time. I choose a particular example to eliminate spurious reasons that I've found in my searches - the 7JP4 CRT in an Hallicrafters that uses a heavy rubber ring to hold the front of the CRT in place.

After the electrons have hit the phospor, imparted the energy from the accelleration, what is the path to complete the beam current loop? How do you not end up building up a charge on the surface that ends up deflecting and repelling the electrons?

No outer coating on the CRT. internal coating has a seperation from the phosphor.