NJ7P SQL Tube Database Query

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5686
Beam Power Pentode

EIA Base & Outline

EIA Base: 9GEIA Bulb: 6-3
Source ........................................ ARRL HB - 1964

Mechanical Data

EIA Outline ................................... 6-3
EIA Base ...................................... 9G

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.35 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 6.4 pf
Output ........................................ 8.5 pf
Grid to Plate ................................. 0.08 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 275 V
Grid No. 2 Voltage ............................ 275 V
Plate Dissipation ............................. 8.25 W
Grid No. 2 Dissipation ........................ 3.0 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -12.5 V
Plate Resistance (approx) ..................... 45K Ω
Transconductance .............................. 3100 µMho
Plate Current ................................. 27 mA
Grid No. 2 Current ............................ 3 mA
Load Resistance ............................... 9K Ω
Power Output (approx) ......................... 2.7 W

Class C Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage ............................ -50 V
Plate Current ................................. 40 mA
Grid No. 2 Current ............................ 10.5 mA
Driving Power ................................. 0.15 W
Power Output (approx) ......................... 6.5 W

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Fri, 30 Sep 2022 00:21:55 -0700