NJ7P SQL Tube Database Query

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3-200A3
Power Triode

EIA Base & Outline

EIA Base: F28

Mechanical Data

EIA Base ...................................... F28

Electrical Data

Heater Voltage ................................ 10 V
Heater Current ................................ 5.0 A

Direct Interelectrode Capacitances (approx)

Triode
Input ......................................... 3.6 pf
Output ........................................ 0.29 pf
Grid to Plate ................................. 3.3 pf

Maximum Ratings (Design Center Values)

Triode
Plate Voltage ................................. 3500 V
Plate Dissipation ............................. 200 W

Characteristics and Typical Operation

Class C Amplifier
Plate Voltage ................................. 3500 V
Grid No. 1 Voltage ............................ -270 V
Grid No. 1 Current ............................ 30 mA
Plate Current ................................. 228 mA
Driving Power ................................. 15 W
Power Output (approx) ......................... 600 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 2500 V
Grid No. 1 Voltage ............................ -300 V
Grid No. 1 Current ............................ 35 mA
Plate Current ................................. 200 mA
Driving Power ................................. 19 W
Power Output (approx) ......................... 375 W

Push Pull Class B Amplifier
Plate Voltage ................................. 2000 V
Grid No. 1 Voltage ............................ -50 V
Peak Grid No. 1 Voltage........................ 520 V
Plate Current (Zero Signal) ................... 120 mA
Plate Current (Maximum Signal) ................ 500 mA
Driving Power ................................. 20 W
Load Resistance ............................... 8.5K Ω
Power Output (approx) ......................... 600 W

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Mon, 27 Jun 2022 07:58:57 -0700