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VT-211

Sensibly equivalent to:
6SG7
See also:
Metal Striptease
    
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The type 6SG7, USA service designation VT-211, was designed for wideband RF and IF amplification and has a relatively high gm value to ensure a good gain-bandwidth product.
The valve has dual cathode lead-outs to minimise the risk of self-oscillation due to parasitic coupling between input and output circuits caused by common impedance in series with the cathode.
The RCA logo on the other side of the can.
The thin metal tube envelope is 25 mm in diameter and, excluding the IO base pins, is 51 mm tall.
References: Datasheet, 1040 & 1043. Type VT-211 was first introduced in 1940.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
m
h
k
g1
k
g2
h
a

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
250
150
-2.5
9.2
3.4
1M
4
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 21, 2015.
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