NJ7P SQL Tube Database Query

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12EQ7
Diode - Remote-Cutoff Pen

EIA Base & Outline

EIA Base: 9LQ

Substitute Data

Substitutes ................................... 12KL8

Mechanical Data

EIA Base ...................................... 9LQ

Electrical Data

Heater Voltage ................................ 12.6 V
Heater Current ................................ 0.15 A

Characteristics and Typical Operation

Pentode Class A Amplifier
Plate Voltage ................................. 100 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ 0 V
Grid No. 1 Voltage Derived from
Grid No. 1 Resistor ........................ 2.2M Ω
Plate Resistance (approx) ..................... 250K Ω
Transconductance .............................. 3800 µMho
Plate Current ................................. 9 mA
Grid No. 2 Current ............................ 3.5 mA

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Complete Tube Manuals:
Tube Manual Index from NJ7P

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Wed, 29 Mar 2023 06:40:15 -0700