NJ7P SQL Tube Database Query

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6442
Planar Triode

EIA Base & Outline

Application

The 6442 is a high-mu, metal-and-ceramic triode intended for operation as a plate-pulsed, grounded-grid oscillator at frequencies as high as 5000 MHz.

The 6442 is also useful as a CW, radio-frequency power amplifier or frequency multiplier as high as 2500 MHz.

Features of the 6442 include small size, planar electrode construction with close spacing, inherent rigidity, an envelope structure convenient for coaxial circuit applications, and excellent resistance to vibration and shock.

Mechanical Data

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.9 A

Direct Interelectrode Capacitances (approx)

Triode
Input ......................................... 5.0 pf
Output ........................................ 0.045 pf
Grid to Plate ................................. 2.3 pf

Maximum Ratings (Design Center Values)

Triode
Plate Voltage ................................. 3000 V
Plate Dissipation ............................. 7.5 W

Characteristics and Typical Operation

Class C Oscillator/Amplifier (2500 MHz)
Plate Voltage ................................. 350 V
Grid No. 1 Voltage ............................ -50 V
Grid No. 1 Current ............................ 15 mA
Plate Current ................................. 35 mA

Class C Modulated Amplifier (Plate) (2500 MHz)
Plate Voltage ................................. 275 V
Grid No. 1 Voltage ............................ -50 V
Grid No. 1 Current ............................ 15 mA
Plate Current ................................. 35 mA

Class C Oscillator/Amplifier-Pulsed (3500 MHz)
Plate Voltage ................................. 3000 V
Grid No. 1 Voltage ............................ -75 V
Grid No. 1 Current ............................ 1250 mA
Plate Current ................................. 2500 mA
Power Output (approx) ......................... 2000 W

Class C Oscillator/Amplifier-Pulsed (5000 MHz)
Plate Voltage ................................. 3000 V
Grid No. 1 Voltage ............................ -75 V
Grid No. 1 Current ............................ 1250 mA
Plate Current ................................. 2500 mA
Power Output (approx) ......................... 500 W

Class C Amplifier (1200 MHz)
Plate Voltage ................................. 250 V
Grid No. 1 Current ............................ 6 mA
Plate Current ................................. 23 mA

If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

(c) 1994-2021 by William A. Beech, NJ7P

Fri, 24 Jun 2022 18:04:20 -0700