NJ7P SQL Tube Database Query

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PL-177A
Beam Power Pentode

EIA Base & Outline

EIA Base: F14

Mechanical Data

EIA Base ...................................... F14

Electrical Data

Heater Voltage ................................ 6 V
Heater Current ................................ 3.2 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 7.5 pf
Output ........................................ 4.2 pf
Grid to Plate ................................. 0.06 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 600 V
Plate Dissipation ............................. 75 W
Grid No. 2 Dissipation ........................ 10 W

Characteristics and Typical Operation

Class C Amplifier/Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 2000 V
Grid No. 3 Voltage ............................ 0 V
Grid No. 2 Voltage ............................ 400 V
Grid No. 1 Voltage ............................ 0-125 V
Grid No. 1 Current ............................ 5 mA
Plate Current ................................. 150 mA
Grid No. 2 Current ............................ 12 mA
Driving Power ................................. 0.8 W
Power Output (approx) ......................... 220 W

Class C Amplifier/Class C Modulated Amplifier (Plate)
Plate Voltage ................................. 1000 V
Grid No. 3 Voltage ............................ 0 V
Grid No. 2 Voltage ............................ 400 V
Grid No. 1 Voltage ............................ -105 V
Grid No. 1 Current ............................ 5 mA
Plate Current ................................. 150 mA
Grid No. 2 Current ............................ 16 mA
Driving Power ................................. 0.7 W
Power Output (approx) ......................... 100 W

Class AB1 Amplifier
Plate Voltage ................................. 1500 V
Grid No. 2 Voltage ............................ 600 V
Grid No. 1 Voltage ............................ -110 V
Peak Grid No. 1 Voltage........................ 108 V
Plate Current (Zero Signal) ................... 30 mA
Plate Current (Maximum Signal) ................ 175 mA
Grid No. 2 Current (Zero Signal) .............. 0 mA
Grid No. 2 Current (Maximum Signal) ........... 8 mA
Power Output (approx) ......................... 140 W

Class AB1 Amplifier
Plate Voltage ................................. 2000 V
Grid No. 2 Voltage ............................ 600 V
Grid No. 1 Voltage ............................ -115 V
Peak Grid No. 1 Voltage........................ 112 V
Plate Current (Zero Signal) ................... 25 mA
Plate Current (Maximum Signal) ................ 175 mA
Grid No. 2 Current (Zero Signal) .............. 0 mA
Grid No. 2 Current (Maximum Signal) ........... 7 mA
Power Output (approx) ......................... 210 W

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Fri, 24 Jun 2022 19:00:45 -0700