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6AS6

Sensibly equivalent to:
409A 5725 6AS6W CV2522 CV4011
    
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The 6AS6/CV2522 is a physically small amplifier pentode. It is designed for dual control and therefore the suppressor has a short grid base or control range.
Reseller Zaerix imported this valve from the USSR.
Looking through the holes in the end walls of the anode, all three wire grids can be seen. The dual control characteristic is conferred by the close wound suppressor grid.
The working face of the anode. The dish like getter holder can be seen at the top.
The other side of the anode with the copper rod connecting to the base.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 38 mm tall.
References: Data-sheet & 1040. Type 6AS6 was first introduced in 1949.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.175
130
120
-2
5.2
3.5
110k
3.2
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 21, 2020.
shape:thin.glass.tube construction:all.glass type:pentode age:1940.1950 base:b7g heater:6.3v pins:7 pin:1.g1 pin:2.k pin:3.h pin:4.h pin:5.a pin:6.g2 pin:7.g3
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