NJ7P SQL Tube Database Query

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1AD5
Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 8CPEIA Bulb: 3-5

Substitute Data

Preferred Substitutes ......................... 1W5
Substitutes ................................... 1AC5 1AD5

Mechanical Data

Bulb .......................................... T3
EIA Outline ................................... 3-5
EIA Base ...................................... 8CP

Electrical Data

Filament Voltage .............................. 1.25 DC V
Filament Current .............................. 0.04 A

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 30 V
Grid No. 2 Voltage ............................ 30 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 700K Ω
Transconductance .............................. 430 µMho
Plate Current ................................. 0.45 mA
Grid No. 2 Current ............................ 0.16 mA

Class A Amplifier
Plate Voltage ................................. 67.5 V
Grid No. 2 Voltage ............................ 67.5 V
Grid No. 1 Voltage ............................ 0 V
Plate Resistance (approx) ..................... 700K Ω
Transconductance .............................. 735 µMho
Plate Current ................................. 1.85 mA
Grid No. 2 Current ............................ 0.75 mA

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Thu, 18 Aug 2022 00:19:07 -0700