Sensibly equivalent¶ to:
The SG2V is a directly heated vari-μ RF tetrode. The screw top cap was common in the early 1930's.
Lissen only briefly made their own valves, for most of the life of the name the valves were made for them. In the Tungsram data book from the 1930's the Lissen valves are listed in the equivalents table.
The metalised balloon envelope is 43 mm in diameter and, excluding the B4 base pins, is 110 mm tall.
References: 4063, 4064& 1043. Type SG2V was first introduced in 1932.
Absolute Maximum Operating Conditions¶
Updated January 03, 2013. shape:balloon construction:pinch type:tetrode age:1930.1940 base:b4 heater:2.0v pins:4 pin:1.g2 pin:2.g1 pin:3.f pin:4.f pin:tc.a