The KT44 beam tetrode on a B7 base is described for both audio use and television line output service. In the television role the valve can withstand a positive anode surge of 8,000 volts. The KT series are mainly known, however, as audio devices. The KT44 is a four Volt version of the KT66 with the anode connection taken to a top cap sa that the valve can withstand high peak anode voltages.

The classic envelope is 52 mm in diameter and, excluding the B7 base pins, is 130 mm tall.

 
Pin Connections

B7	1	2	3	4	5	6	7	tc
	-	g1	s	h	h	k	g2	a

 
Absolute Maximum Operating Conditions

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm	Pout	D
	4.0	2.0	250	250	-25	85	20	6.3	7.5	9%

Beam Tetrode	Vh	Ah	Va	Vs	mAa
	4.0	2.0	-	300	21.5

This exhibit was last updated on 04 July 2006