The classic 807 beam tetrode designated as a military valve. The ceramic base offers better insulation in humid conditions or at altitude.
The parameters given are for single ended use. When used in a class AB1 as a push pull pair with 600 volts on the anode an output power of 65 Watts was normal.
The anode side view with flange facing forward.
The grids and beam plates can be seen below the anode.
The classic envelope is 50 mm in diameter, and excluding the UX5 base pins is 131 mm tall.
