Mid to late 70's Look for 4 digit date codes on large parts.
GE is like Zenith. You need to be sure the S-cap is not a white one.
A bad one can blow the HOT, FBT & Vert out.
Look around, it may have a 'mini manual" in there.
Its dead so should be easy to fix.
73 Zeno
LFOD !