The CV797 is a xenon filled tetrode thyratron. The prototype was the commercial 2D21.![](../pics/acp0056a.jpg)
The rectangular box is grid two. The anode connection is in a ceramic tube from the base pin up and into the box.![](../pics/acp0056b.jpg)
The STC logo and commercial Type code 2D21 indicating equivalence.The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 43 mm tall.Reference: Data-sheet. Type CV797 was first introduced in 1944. See also 1944 adverts. |