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DL94

Sensibly equivalent to:
1P11 3V4 CV2983 N19
See also:
DL92 & DL94 Advert
    
Extras ▼

 

The DL94 audio output pentode from Mullard was designed for use in battery portable radio receivers. Mullard describe the DL94 as a battery operated output pentode with centre tapped filament, and designed for operation with equal voltages on both screen and anode.
The outer cylinder is the anode, within can be seen U shaped bright pieces at either end. These are the beam plates and they connect to the filament centre tap.
The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 48 mm tall.
References: Data-sheet, 1040 & 3002. Type DL94 was first introduced in 1950. See also 1950 adverts.

 

Pin Connections
B7G
1
2
3
4
5
6
7
f-
a
g2
nc
fct
g1
f+

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
1.4
0.1
90
90
-4.5
9.5
2.1
100,000
2.15
0.27
7%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 17, 2022.
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