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CV2984

Sensibly equivalent to:
6080WA 6080WB 6080 CV5008 ECC230
See also:
Series Pass Valves
    
Extras ▼

 

The CV2984 was designed for duty as a series-stabiliser triode and as a cathode-follower output valve in control applications. The controlled output (up to 125 mA per half) is delivered at the valve cathode, it being normal to operate both halves in parallel.
Along with its numerous 'equivalents' The CV2984 or 6080 was used professionally in large numbers during the 1960s and remained in demand for replacement purposes until well into the 1980s.
The most significant feature of the 6080 CV2984 is its exceptionally low Ra value, nominally 285 ohms per half, enabling a valve to deliver 250 mA for less than 50 V anode-cathode drop. Note all of the operating details apply to each half.
The characteristic curves show that the valve is not ideal as a linear amplifier.
The GEC logo on this M-OV valve. The four flat bottomed U shaped anodes are identical.
Looking into a pair of anodes with the control grids extending outside the anode.
A single triode with anodes either side of the central grid and cathode. The grid wires pass flat across the anode.
The wide glass tube envelope is 38 mm in diameter and, excluding the base pins, is 86 mm tall.
References: Data-sheet, private communication, 3002 & 1040. Type CV2984 was first introduced in 1951.

 

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

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
mAa
Pdiss
ra
gm
μ
6.3
2.5
135
125
13W
285
7.0
2-2.3
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 15, 2021.
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