TUBE vintage, subminiature, sharp-cutoff pentode vacuum tube. It features a coated filament designed specifically for radiosonde applications. Tube Outline: Subminiature T-2x3 glass bulb construction with a coated metallic shield.Base / Terminal Leads: 8 flexible, tinned in-line leads that can be soldered or welded directly to circuit components. Standard subminiature sockets can be used if the leads are cut down to 0.20 inches.Filament Rating: 1.25 Volts at 100 mA (AC or DC operation).Maximum Design Center Ratings: Max plate voltage of 90V, max grid #2 voltage of 90V, and a total cathode current of 6.5 mA.Class A Amplifier Characteristics: At 90V (Plate and Grid #2), it yields a transconductance of 2,500 µmhos, a plate current of 3.5 mA, and a grid #2 current of 1.1 mA.Visual Key: Features a distinguishing red dot near lead #1 on the bottom layout.
