The 9BW6 has the same characteristics as the 6BW6 with a 9 Volt 0.3 Amp heater making it suitable for use on television heater chains. As an audio output valve it delivers a significant 5.5 Watts at 12% distortion. The cathode resistor should be 360 Ohms.

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 60 mm tall.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout	D
	9.0	0.3	315	225	-13.0	34.0	2.2	77,000	3.75	5.5W	12%

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 05 July 2007 {find valves by name}