The KTW61 is a variable μ amplifier pentode for use in RF or IF stages within an AGC controlled superhet receiver. The control grid connected to the top cap reinforces this view. The literature gives the device as a pentode but the KT prefix from MOV suggests a beam tetrode.

The classic envelope is 36 mm in diameter, and excluding the IO base pins, is 104 mm tall.

 
Pin Connections

IO	1	2	3	4	5	6	7	8	tc
	m	h	a	g2	g3	-	h	k	g1

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.3	250	100	-3	8.0	2.7	0.46M	2.9

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This exhibit was last updated on 12 January 2004