28-10-2021, 09:22 AM
Adrian,
Concerning the focus coil: please see this drawing of a Philips focus coil for a 1949 receiver.
The shaded parts 1 & 3 are metal (iron) and the cross-shaded part 2 is the coil.
The idea is that the metal concentrates the magnetic field towards the CRT-neck.
Hope this helps a bit.
Good luck with your project!
Jac
Concerning the focus coil: please see this drawing of a Philips focus coil for a 1949 receiver.
The shaded parts 1 & 3 are metal (iron) and the cross-shaded part 2 is the coil.
The idea is that the metal concentrates the magnetic field towards the CRT-neck.
Hope this helps a bit.
Good luck with your project!
Jac
