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VT-93

Sensibly equivalent to:
6B8
See also:
Metal Striptease
    
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The VT-93 American metal valve is a double diode pentode. Such valves were made for the signal detector, AGC detector and first audio amplifier stages of superhet receivers.
The thin metal tube envelope is 24 mm in diameter and, excluding the IO base pins, is 62 mm tall.
References: Datasheet & 1040. Type VT-93 was first introduced in 1937.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
tc
m
h
a
a(d2)
a(d1)
g2
h
k
g1

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
250
125
-3
10
2.3
0.6M
1.33
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December27, 2011.
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