The N118 is an audio output valve designed for universal mains radio receivers.

The cathode resistor should be 180 Ohms and the anode load should be 5,40 Ohms.

The thin glass tube envelope is 20 mm in diameter and, excluding the B8A base pins, is 64 mm tall.

Reference: ¹⁰⁴⁰. Type N118 was first introduced^¶ in 1957.

 
Pin Connections

B8A	1	2	3	4	5	6	7	8
	h	a	ic	ic	g2	g1	k	h

 
Absolute Maximum Operating Conditions^¶

Beam Tetrode	Vh	Ah	Va	Vs	Vg	mAa	mAs	ra	gm	Pout	D
	40	0.1	180	150	-12.5	70.0	5.0	230k	10.0	2.6	10.0