NJ7P SQL Tube Database Query

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7035/4X150D
Power Tetrode

EIA Base & Outline

Mechanical Data

EIA Base ...................................... F75

Electrical Data

Heater Voltage ................................ 26.5 V
Heater Current ................................ 0.58 A

Direct Interelectrode Capacitances (approx)

Tetrode
Input ......................................... 16 pf
Output ........................................ 4.4 pf
Grid to Plate ................................. 0.03 pf

Maximum Ratings (Design Center Values)

Tetrode
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 300 V
Plate Dissipation ............................. 250 W
Grid No. 2 Dissipation ........................ 12 W

Characteristics and Typical Operation

Class C Oscillator/Amplifier
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -88 V
Grid No. 1 Current ............................ 8 mA
Plate Current ................................. 250 mA
Grid No. 2 Current ............................ 24 mA
Driving Power ................................. 2.5 W
Power Output (approx) ......................... 370 W

Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 1600 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -118 V
Grid No. 1 Current ............................ 5 mA
Plate Current ................................. 200 mA
Grid No. 2 Current ............................ 23 mA
Driving Power ................................. 3 W
Power Output (approx) ......................... 230 W

Push Pull Class AB2 Amplifier
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 300 V
Grid No. 1 Voltage ............................ -50 V
Peak Grid No. 1 Voltage........................ 106 V
Plate Current (Zero Signal) ................... 100 mA
Plate Current (Maximum Signal) ................ 500 mA
Grid No. 2 Current (Zero Signal) .............. 0 mA
Grid No. 2 Current (Maximum Signal) ........... 36 mA
Driving Power ................................. 0.2 W
Load Resistance ............................... 8.1K Ω
Power Output (approx) ......................... 630 W

Push Pull Class AB1 Amplifier
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 300 V
Grid No. 1 Voltage ............................ -50 V
Peak Grid No. 1 Voltage........................ 100 V
Plate Current (Zero Signal) ................... 100 mA
Plate Current (Maximum Signal) ................ 470 mA
Grid No. 2 Current (Zero Signal) .............. 0 mA
Grid No. 2 Current (Maximum Signal) ........... 36 mA
Driving Power ................................. 0 W
Load Resistance ............................... 8.76K Ω
Power Output (approx) ......................... 580 W

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

Sat, 02 Jul 2022 20:23:23 -0700