Sensibly equivalent¶ to:
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.
Absolute Maximum Operating Conditions¶
Updated February 17, 2022.