NJ7P SQL Tube Database Query

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6AS7GA
Low-Mu Twin Power Triode

EIA Base & Outline

Substitute Data

Preferred Substitutes ......................... 6080
Substitutes ................................... 6520 5998 7236 7802
Source ........................................ GE DS 6/55

Application

Source ........................................ GE DS 6/55
Glass octal type used as a regulator tube in dc power supply units and in projection television booster scanning applications.

Mechanical Data

Source ........................................ GE DS 6/55
Bulb .......................................... T-12
Base Type ..................................... Short Medium Shell Octal 8-Pin
EIA Outline ................................... 12-16
EIA Base ...................................... 8BD
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ GE DS 6/55
Heater Voltage ................................ 6.3 V
Heater Current ................................ 2.5 A
Maximum Heater-Cathode Voltage ................ 300 V

Direct Interelectrode Capacitances (approx)

Each Triode
Source ........................................ GE DS 6/55
Input ......................................... 6.5 pf
Output ........................................ 2.2 pf
Grid to Plate ................................. 7.5 pf

Maximum Ratings (Design Center Values)

Each Triode
Source ........................................ GE DS 6/55
Plate Voltage ................................. 250 V
Plate Dissipation ............................. 13 W
Plate Current ................................. 125 mA
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 1M Ω
Self Bias .................................. Not Recommended Ω

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE DS 6/55
Plate Voltage ................................. 135 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 250 Ω
Amplification Factor .......................... 2
Plate Resistance (approx) ..................... 280 Ω
Transconductance .............................. 7000 µ
Plate Current ................................. 125 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

Tue, 21 Mar 2023 04:50:40 -0700