The PL302 is an output beam tetrode primarily intended for use in both stabilised and non-stabilised time base output stages of AC/DC, 405/625 line television receivers with series connected heaters.
The valve had full lettering when found but the white lettering was powdery and fell off during light dusting.
Through the end wall of the anode can be seen the bright beam plate and within the two wire grids. The latter pass flat across the cathode.
This view shows the anode shape and side flanges. The beam plate connects to a screen at the top above the mica disc.
The wide glass tube envelope is 28 mm in diameter and, excluding the IO base pins, is 90 mm tall.
Reference: Data-sheet. Type PL302 was first introduced in 1964. See also1964 adverts.
