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VT68

Sensibly equivalent to:
POVT68
    
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The VT68 (POVT68) from Mullard is a Post Office amplifier triode. It also has a CV number CV1651. This exhibit also has the code MV-39.
The Mullard identification.
The filament is held at the top by three tension springs and thus the filament passes through the grid/anode six times.
The coated filament wires and the top of the grid.
The classic envelope is 45 mm in diameter, and excluding the B4 base pins is 100 mm tall.
Reference: Data-sheet.

 

Pin Connections
B4
1
2
3
4
a
g1
f-
f+

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
ra
gm
μ
4.0
0.45
150
5,000
1.9
9.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 23, 2019.
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