Vacuum Tube - 2D21 / PL21, Thyratron
New-Old-Stock (NOS) tube.
The 2D21 is a miniature, four-electrode, inert-gas-filled thyratron with negative control characteristics of the tube include a high control ratio essentially independent of temperature over a wide range low grid-anode capacitance and very low grid current.
|Packaging Dimensions||1 in. × 1 in. × 3 in.|
|Weight (Packaging)||0.028 lbs.|
|NOS Tube Specification Sheet||All Models|