First Transistor TV ?

[old_tv_nut]

Trinitron was not close to the apple tube - apple was a single-beam, beam index tube, whereas Trinitron used 3 beams which they stated as having a single gun because some of the electrodes were common to all three beams. Trinitron did have a wire grill shadow mask, as did the Lawrence tube, however, the Lawrene tube actually applied AC color-switching voltage to alternate wires so it could use a single gun, a process of "post deflection color selection."