The QV03-12 is a small transmitting beam tetrode valve for HF and low VHF use.

The circular anode contains a flat sided cathode and grids that are flat across the cathode width and rounded at the ends. The screen grid wires are directly in front of each control grid wire.

The heater is referenced as 6.0V by Brimar as well as Mullard.

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 50 mm tall.

 
Pin Connections

B9A	1	2	3	4	5	6	7	8	9
	a	-	g3	h	h	g2	k	g1	g1

 
Absolute Maximum Operating Conditions

Beam Tetrode

Vh

Ah

Va

Vs

Vg

mAa

mAs

mAg

Pdriv

Pout

Pdiss

freq

f.max

6.0

0.75

300

250

-60

50

5

3

0.4W

8W

12W

30

175

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 10 June 2007 {find valves by name}