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AS4125

Sensibly equivalent to:
AC/SGVM CV1165 MVSPen VMS4B VP4
    
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The AS4125 is an indirectly heated variable-μ RF tetrode for superhet receiver applications.
The reverse is plain gold paint.
The classic envelope is 49 mm in diameter, and excluding the B5 base pins is 121 mm tall.
Reference: 1043. Type AS4125 was first introduced in 1933.

 

Pin Connections
B5
1
2
3
4
5
tc
a
g1
h
h
k
g2

 

Absolute Maximum Operating Conditions
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
4.0
1.2
200
100
-1.5-40
3.0
0.8
0.25M
3.0
Updated February 20, 2015.
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