Sensibly equivalent¶ to:
The EF95/6AK5 is an amplifier pentode that is physically small and the electrode assembly is no more than a 10 mm cube. The use of this device lay in low noise RF amplification at VHF.
The American Type designation 6AK5 was the industry standard name and here Mullard acknowledge this by the use of both the American and Philips-Mullard European Type designations on the glass.
See also 5654 special quality version of the 6AK5.
Within the box shaped anode can be seen the grid structure. It is hard to see the control grid as it is made of very fine wire and close in to the cathode.
The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins, is 37 mm tall.
References: Datasheet & 1040. Type 6AK5 was first introduced in 1942.
Absolute Maximum Operating Conditions¶
Updated January 14, 2017. shape:thin.glass.tube construction:all.glass type:pentode age:1950.1960 base:b7g heater:6.3v pins:7 pin:1.g1 pin:2.k pin:3.h pin:4.h pin:5.a pin:6.g2 pin:7.k