NJ7P SQL Tube Database Query

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6BG7
Medium-Mu Twin Triode

EIA Base & Outline

Substitute Data

Preferred Substitutes ......................... 6BF7
Substitutes ................................... 6021 8525
Source ........................................ GE - 1973

Application

Source ........................................ GE - 1973
Subminiature type used in similar function to type 6J6, but provides added flexability from use of separate cathode leads and the compact construction.

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-3
EIA Outline ................................... 3-5
EIA Base ...................................... 8DG

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Triode 1
Source ........................................ GE - 1973
Input ......................................... 2.0 pf
Output ........................................ 1.6 pf
Grid to Plate ................................. 1.5 pf

Triode 2
Source ........................................ GE - 1973
Input ......................................... 2.0 pf
Output ........................................ 2.0 pf
Grid to Plate ................................. 1.5 pf

Maximum Ratings (Design Center Values)

Triode 1
Source ........................................ GE - 1973
Plate Voltage ................................. 110 V
Plate Dissipation ............................. 1.0 W

Triode 2
Source ........................................ GE - 1973
Plate Voltage ................................. 110 V
Plate Dissipation ............................. 1.0 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 100 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 100 Ω
Amplification Factor .......................... 35
Plate Resistance (approx) ..................... 7000 Ω
Transconductance .............................. 4800 µ
Plate Current ................................. 8.0 mA

If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.

(c) 1994-2021 by William A. Beech, NJ7P

Mon, 06 Feb 2023 19:52:33 -0700