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CV1985

Sensibly equivalent to:
6SL7GT VT-229
    
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The CV1985 is a high μ twin amplifier triode. The prototype was the 6SL7GT.
Made in England and the triodes seen from the side.
The identical triodes have the heaters wired in parallel. The folded anodes are stitched and welded to the support rods.
The wide glass tube envelope is 29 mm in diameter and, excluding the IO base pins, is 66 mm tall.
Reference: Data-sheet.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
g1(2)
a(2)
k(2)
g1(1)
a(1)
k(1)
h
h

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
μ
6.3
0.3
275
-2
2.3
44,000
1.6
70
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 08, 2021.
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