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.

References: Datasheet & ¹⁰⁴⁰.

 
Pin Connections

UX5	1	2	3	4	5	tc
	h	g2	g1	k	h	a

 
Absolute Maximum Operating Conditions^¶

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout
	6.3	0.9	300	250	-14	83	8	20k	6.5	6.7W

Beam Tetrode

Vh

Ah

Va

Vs

Vg

mAa

mAs

mAg

Pdriv

Pdiss

Pout

freq

f.max

6.3

0.9

600

250

-45

100

7

3.5

0.2W

25W

40W

60

125

Thanks to Frank Philipse for supplying the above PDF datasheet