The EBC90 is an amplifier triode with double diodes sharing the same cathode connection was designed for use in superhet receivers.

Seen in profile the two diodes are the outer structures while the triode is housed in the central dark anode. The central cathode tube is coated within the triode and then a second patch of coating has been applied to the part that extends within the twin side anodes.

The Thin Glass Tube envelope is 17 mm in diameter and, excluding the B7G base pins, is 46 mm tall.

 
Pin Connections

B7G	1	2	3	4	5	6	7
	g1	k	h	h	a(d2)	a(d1)	a

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	ra	gm
	6.3	0.3	250	-3	1.0	58,000	1.2

This exhibit was last updated on 12 March 2006