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W727

Sensibly equivalent to:
6BA6 CV454 EF93
    
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The W727 is a variable μ pentode for use at HF. Most often as an IF amplifier in superhet receivers. This GEC exhibit is also marked with the alternative Type designation of 6BA6. The 1954 data-sheet states that the W727 is the commercial equivalent of CV454.
The GEC label.
The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins, is 47 mm long.
References: Datasheet & 1040. Type W727 was first introduced in 1954.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
gm
6.3
0.3
250
100
-1
11
4.4
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December14, 2015.
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