The CV4039 is the M8096 in UK Government specification. Commercially the M8096 is the special quality version of Mullard's QV03-12 transmitting valve. This provides a rugged valve for use in situations where vibration may be encountered. In practice this would have found service in portable military trancievers.

The anode mainly obscures the electrodes but some of the structure is visible. The cathode is flat and the two grids are gold coloured. There is no beam plate visible just four support rods, and these may be sufficient on their own.

The valve is designed to operate at HF (up to 30 MHz) at full power but may be used at a maximum at up to 175 MHz. In the latter case the valve would probably be employed as a frequency multiplier rather than an output valve.

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 59 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

Pdriv

Pdiss

Pout

freq

f.max

6.0

0.75

300

250

-60

50.0

5.0

0.4W

12W

8W

30Mhz

175Mhz

This exhibit was last updated on 07 February 2004