NJ7P SQL Tube Database Query

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844
Power Tetrode

EIA Base & Outline

EIA Base: 5AW

Mechanical Data

EIA Base ...................................... 5AW

Electrical Data

Heater Voltage ................................ 2.5 V
Heater Current ................................ 2.5 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 9.5 pf
Output ........................................ 7.5 pf
Grid to Plate ................................. 0.15 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 500 V
Grid No. 2 Voltage ............................ 180 V
Plate Dissipation ............................. 15 W
Grid No. 2 Dissipation ........................ 3 W

Characteristics and Typical Operation

Class C Amplifier
Plate Voltage ................................. 500 V
Grid No. 2 Voltage ............................ 175 V
Grid No. 1 Voltage ............................ -125 V
Grid No. 1 Current ............................ 5 mA
Plate Current ................................. 25 mA
Power Output (approx) ......................... 9 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 500 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -100 V
Plate Current ................................. 20 mA
Power Output (approx) ......................... 4 W

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Sat, 04 Dec 2021 19:20:55 -0700