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7V7

Sensibly equivalent to:
1231
See also:
American Loctal Valves
    
Extras ▼

 

The 7V7 is a sharp cut-off pentode designed for high frequency voltage amplification.
The anode is rated at a maximum of four Watts dissipation. Running an RF amplifier at significant current lowers the noise added to the signal.
The identification is etched into the dome of the bulb.
The wide glass tube envelope is 29 mm in diameter, and excluding the B8B base pins is 57 mm tall.
Reference: Datasheet. Type 7V7 was first introduced in 1941.

 

Pin Connections
B8B
1
2
3
4
5
6
7
8
h
a
g2
g3
s
g1
k
h

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.45
300
150
-8
10.0
3.9
0.3M
5.8
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated August 24, 2015.
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