NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6SL7GT
High-Mu Twin Triode

EIA Base & Outline

EIA Base: 8BDEIA Bulb: 9-41

Substitute Data

Preferred Substitutes ......................... 6SU7
Substitutes ................................... 6SN7
Source ........................................ RCA RC-15 - 1947

Application

Source ........................................ RCA RC-15 - 1947
Glass octal type used as phase inverter or resistance-coupled amplifier in radio equipment. Requires octal socket and may be mounted in any position. Each triode unit is independent of the other except for the common heater.

Mechanical Data

Source ........................................ RCA RC-15 - 1947
Bulb .......................................... T-9
Base Type ..................................... Intermediate Shell Octal 8-Pin
EIA Outline ................................... 9-11 9-41
EIA Base ...................................... 8BD
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-15 - 1947
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 90 V
Heater Negative with Respect to Cathode
DC Component ............................ 90 V

Direct Interelectrode Capacitances (approx)

Triode 1
Source ........................................ RCA RC-15 - 1947
Input ......................................... 3.0 pf
Output ........................................ 3.8 pf
Grid to Plate ................................. 2.8 pf

Triode 2
Source ........................................ RCA RC-15 - 1947
Input ......................................... 3.4 pf
Output ........................................ 3.2 pf
Grid to Plate ................................. 2.8 pf

Maximum Ratings (Design Center Values)

Each Triode
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 250 V
Plate Dissipation ............................. 1 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -2 V
Amplification Factor .......................... 70
Plate Resistance (approx) ..................... 44K Ω
Transconductance .............................. 1600 µMho
Plate Current ................................. 2.3 mA

A horizontal ribbon.

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A horizontal ribbon.

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Tue, 24 May 2022 01:32:31 -0700