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VT-179

Sensibly equivalent to:
1LN5
See also:
Sylvania VT-179 Box
    
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The VT-179 American government code valve is a dry battery straight screened pentode. It was used as an RF and IF amplifier in AM radio receivers where AGC is not required.
The commercial type used as the VT-179 is the 1LN5.
The wide glass tube envelope is 30 mm in diameter, and excluding the B8B base pins is 54 mm tall.
References: Data-sheet.

 

Pin Connections
B8B
1
2
3
4
5
6
7
8
f+
a
g2
g3
f-
g1
nc
f-

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
1.4
0.05
90
90
-0
1.6
0.35
1.1M
0.8
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 06, 2022.
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