Sensibly equivalent¶ to:
The S6F33 is a special quality version of the 6F33 RF pentode, the structure is open with the anode being formed by two small plates that are strapped together. The suppressor grid is closely spaced and the valve has a very short suppressor grid control curve.
The maximum anode dissipation is 3 Watts and the fine wire screen grid dissipation is up to 1.5 Watts.
The thin glass tube envelope is 18 mm in diameter, and excluding the base pins is 44 mm tall.
References: Datasheet, 1040 & Ray Cooper. Type S6F33 was first introduced in 1961.
Absolute Maximum Operating Conditions¶
Updated January 27, 2013. 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.g3.a(d) pin:7.g2