The 6D7 is a high impedance amplifier petode. The striking thing about the 6D7 is the sheet metal screen fixed to the envelope. The box states that it is a laboratory type tube and licensed from RCA. The manufacturer is American and the address on the box is New York City.

The classic envelope is 41 mm in diameter and, excluding the UX7 base pins, is 116 mm tall.

 
Pin Connections

UX7	1	2	3	4	5	6	7	tc
	h	a	g2	g3	-	k	h	g1

 
Absolute Maximum Operating Conditions

Pentode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm
	6.3	0.3	250	100	-3.0	2.0	0.5	1.0M	1.23

This exhibit was last updated on 07 February 2003