NJ7P SQL Tube Database Query

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A horizontal ribbon.

6SN7GTA
Medium-Mu Twin Triode

EIA Base & Outline

EIA Base: 8BDEIA Bulb: 9-41

Substitute Data

Preferred Substitutes ......................... 6SN7GTB
Substitutes ................................... 6BL7 6BX7GT
Source ........................................ RCA DS 06/14/54

Application

Source ........................................ RCA DS 06/14/54
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 DS 06/14/54
Bulb .......................................... T-9
Base Type ..................................... Int or Short Int Shell Octal 8-Pin
EIA Outline ................................... 9-11 9-41
EIA Base ...................................... 8BD
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA DS 06/14/54
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.6 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 100 V
Total DC and Peak ....................... 200 V
Heater Negative with Respect to Cathode
Total DC and Peak ....................... 200 V

Direct Interelectrode Capacitances (approx)

Triode 1
Source ........................................ RCA DS 06/14/54
Input ......................................... 2.2 pf
Output ........................................ 0.7 pf
Grid to Plate ................................. 4.0 pf

Triode 2
Source ........................................ RCA DS 06/14/54
Input ......................................... 2.6 pf
Output ........................................ 0.7 pf
Grid to Plate ................................. 3.8 pf

Maximum Ratings (Design Center Values)

Triode 1
Source ........................................ RCA DS 06/14/54
Plate Voltage ................................. 450 V
Plate Dissipation ............................. 5 W
Cathode Current ............................... 20 mA
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 1M Ω

Triode 2
Source ........................................ RCA DS 06/14/54
Plate Voltage ................................. 450 V
Plate Dissipation ............................. 5 W
Cathode Current ............................... 20 mA
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 1M Ω

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA DS 06/14/54
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -8 V
Amplification Factor .......................... 20
Plate Resistance (approx) ..................... 7.7K Ω
Transconductance .............................. 2600 µMho
Plate Current ................................. 9 mA

Class A Amplifier
Source ........................................ RCA DS 06/14/54
Plate Voltage ................................. 90 V
Grid No. 1 Voltage ............................ 0 V
Amplification Factor .......................... 20
Plate Resistance (approx) ..................... 6.7K Ω
Transconductance .............................. 3000 µMho
Plate Current ................................. 10 mA

Vert Defl Amplifier
Source ........................................ RCA DS 06/14/54
DC Plate Supply Voltage ....................... 450 V
Peak Positive-Pulse Plate Voltage ............. 1500 V
DC Grid No. 2 Voltage ......................... 250 V
Peak Negative-Pulse Grid No. 1 Voltage ........ 20 V
Average Cathode Current ....................... 70 mA
Peak Cathode Current .......................... 5 mA

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Thu, 02 Feb 2023 23:45:05 -0700