NJ7P SQL Tube Database Query

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7AG7
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 8VEIA Bulb: 9-30

Substitute Data

Preferred Substitutes ......................... 7G7
Substitutes ................................... 7AH7 7H7 7T7 7V7

Mechanical Data

Bulb .......................................... T-9
Base Type ..................................... Lock-in 8-Pin
EIA Outline ................................... 9-30
EIA Base ...................................... 8V
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.15 A

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 250 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 250 Ω
Plate Resistance (approx) ..................... 1M Ω
Transconductance .............................. 4200 µMho
Plate Current ................................. 6 mA
Grid No. 2 Current ............................ 2 mA

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Thu, 30 Jun 2022 15:04:50 -0700