NJ7P SQL Tube Database Query

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4A6G
Class B Twin Amplifierlifier

EIA Base & Outline

EIA Base: 8LEIA Bulb: 12-7
Source ........................................ ARRL HB - 1947

Mechanical Data

Source ........................................ ARRL HB - 1947
Bulb .......................................... ST-12
EIA Outline ................................... 12-7
EIA Base ...................................... 8L

Electrical Data

Source ........................................ ARRL HB - 1947
Filament Voltage .............................. 4.0/2.0 DC V
Filament Current .............................. 0.06/0.12 A

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ ARRL HB - 1947
Plate Voltage ................................. 90 V
Grid No. 1 Voltage ............................ -1.5 V
Amplification Factor .......................... 20
Plate Resistance (approx) ..................... 26.6K Ω
Transconductance .............................. 750 µMho
Plate Current ................................. 1.1 mA

Class B Amplifier (2 sections)
Source ........................................ ARRL HB - 1947
Plate Voltage ................................. 90 V
Grid No. 1 Voltage ............................ -1.5 V
Plate Current (Zero Signal) ................... 1.1 mA
Plate Current (Maximum Signal) ................ 10.8 mA
Load Resistance ............................... 8K Ω
Power Output (approx) ......................... 1.0 W

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Mon, 15 Aug 2022 23:28:30 -0700