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6GW8

Sensibly equivalent to:
CV8297 ECL86
See also:
A Low Cost Amplifier
    
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The 6GW8 was one of the last audio triode output pentode valves designed. Uses were in domestic radio and audio equipment. Normally in single ended output stages for radiograms and tape recorders. The design proved popular in low cost stereo systems and was made by several companies, this exhibit being labeled Sylvania but made in England, probably by Mullard.
The triode is on the left. At the right can be seen the top of the control grid support rods complete with radiator fins. The getter holder is at the extreme right.
The pentode with the triode in the top left corner. The ratings for the triode section are almost identical to one half of the ECC83.
The thin glass tube envelope is 21 mm in diameter and, excluding the B9A base pins, is 70 mm tall.
Reference: Datasheet. Type 6GW8 was first introduced in 1961.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
g1(t)
k(t)
g2
h
h
a
k,g3,s
g1
a(t)

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
6.3
0.7
250
-1.9
1.2
62k
1.6

 

Absolute Maximum Operating Conditions
Pentode
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
250
250
-7
36
6
48k
10
4W
10%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 28, 2013.
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