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N144

Sensibly equivalent to:
16A 6AM5 6P17 7D9 EL91 N77
    
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The N144 is a small audio output pentode. At the standard 10% distortion the N144 would deliver 1.4 Watts output. Thus made it suitable for domestic equipment. The design was popular and the major manufacturers all made versions of the design.
Emitron is not a usual trade mark.
The thin glass tube envelope is 17 mm in diameter and, excluding the B7G base pins, is 44 mm tall.
References: Datasheet & 1040.

 

Pin Connections
B7G
1
2
3
4
5
6
7
g1
k,g3
h
h
a
ic
g2

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Vs
Vg
mAa
mAs
ra
gm
6.3
0.2 Va_250
250
-12.5
16.0
2.4
130k
2.6
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated May 03, 2013.
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