NJ7P SQL Tube Database Query

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8122
Beam Power Tube

EIA Base & Outline

EIA Base: F86
Source ........................................ RCA TT-5 - 1962

Mechanical Data

EIA Base ...................................... F86

Electrical Data

Heater Voltage ................................ 13.5 V
Heater Current ................................ 1.3 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 16 pf
Output ........................................ 6.5 pf
Grid to Plate ................................. 0.13 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 2200 V
Grid No. 2 Voltage ............................ 400 V
Plate Dissipation ............................. 400 W
Grid No. 2 Dissipation ........................ 8 W

Characteristics and Typical Operation

Class C Oscillator/Amplifier 470 Mhz
Plate Voltage ................................. 700 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 30 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 10 mA
Driving Power ................................. 5 W
Power Output (approx) ......................... 100 W

Class C Oscillator/Amplifier 470 Mhz
Plate Voltage ................................. 1000 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 30 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 10 mA
Driving Power ................................. 5 W
Power Output (approx) ......................... 165 W

Class C Oscillator/Amplifier 470 Mhz
Plate Voltage ................................. 1500 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 30 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 5 mA
Driving Power ................................. 5 W
Power Output (approx) ......................... 235 W

Class C Oscillator/Amplifier 470 Mhz
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 30 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 5 mA
Driving Power ................................. 5 W
Power Output (approx) ......................... 300 W

Class C Oscillator/Amplifier 50 Mhz
Plate Voltage ................................. 700 V
Grid No. 2 Voltage ............................ 175 V
Grid No. 1 Voltage ............................ -10 V
Grid No. 1 Current ............................ 50 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 25 mA
Driving Power ................................. 1.2 W
Power Output (approx) ......................... 120 W

Class C Oscillator/Amplifier 50 Mhz
Plate Voltage ................................. 1000 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 40 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 20 mA
Driving Power ................................. 2 W
Power Output (approx) ......................... 175 W

Class C Oscillator/Amplifier 50 Mhz
Plate Voltage ................................. 1500 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 40 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 20 mA
Driving Power ................................. 2 W
Power Output (approx) ......................... 275 W

Class C Oscillator/Amplifier 50 Mhz
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -30 V
Grid No. 1 Current ............................ 30 mA
Plate Current ................................. 300 mA
Grid No. 2 Current ............................ 20 mA
Driving Power ................................. 2 W
Power Output (approx) ......................... 375 W

Push Pull Class AB1 Amplifier
Plate Voltage ................................. 1000 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -20 V
Grid No. 1 Current ............................ 0.05 mA
Plate Current (Zero Signal) ................... 100 mA
Plate Current (Maximum Signal) ................ 210 mA
Grid No. 2 Current (Zero Signal) .............. 0 mA
Grid No. 2 Current (Maximum Signal) ........... 10 mA
Driving Power ................................. 0.3 W
Power Output (approx) ......................... 110 W

Push Pull Class AB1 Amplifier
Plate Voltage ................................. 1500 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -20 V
Grid No. 1 Current ............................ 0.05 mA
Plate Current (Zero Signal) ................... 100 mA
Plate Current (Maximum Signal) ................ 210 mA
Grid No. 2 Current (Zero Signal) .............. 0 mA
Grid No. 2 Current (Maximum Signal) ........... 10 mA
Driving Power ................................. 0.3 W
Power Output (approx) ......................... 170 W

Push Pull Class AB1 Amplifier
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 400 V
Grid No. 1 Voltage ............................ -35 V
Grid No. 1 Current ............................ 0.05 mA
Plate Current (Zero Signal) ................... 100 mA
Plate Current (Maximum Signal) ................ 335 mA
Grid No. 2 Current (Zero Signal) .............. 0 mA
Grid No. 2 Current (Maximum Signal) ........... 10 mA
Driving Power ................................. 0.3 W
Power Output (approx) ......................... 380 W

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Fri, 24 Jun 2022 18:26:54 -0700