This valve is a KT42 beam tetrode audio power output valve. The rated anode load is 7,000 Ohms.

The classic envelope is 43 mm in diameter and, excluding the B7 base pins, is 100 mm tall.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	gm	Pout
	4.0	1.0	250	250	-16.5	34	5.5	2.5	3.25

This exhibit was last updated on 12 January 2004