Sensibly equivalent¶ to:
The 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.
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 screen grid is a close wound helix of less than 0.5 mm pitch. The suppressor grid is a gentle helix some distance out from grid 2.
The thin glass tube envelope is 18 mm in diameter and excluding the B7G base pins, is 35 mm tall.
References: Datasheet, 3002 & 1040 Type 6AK5 was first introduced in 1942.
Absolute Maximum Operating Conditions¶
Updated September 09, 2013. shape:thin.glass.tube construction:all.glass type:pentode age:1940.1950 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