NJ7P SQL Tube Database Query

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A horizontal ribbon.

6AC9
Dual Diode - Pentode

EIA Base & Outline

EIA Base: 12GNEIA Bulb: 9-57

Substitute Data

Preferred Substitutes ......................... 1852
Source ........................................ Sylvania

Application

Source ........................................ Sylvania
Duodecar type used as combined detector and if amplifier in tv receivers. Requires duodecar 12-contact socket.

Mechanical Data

Source ........................................ Sylvania
Bulb .......................................... T-9
EIA Outline ................................... 9-57
EIA Base ...................................... 12GN

Electrical Data

Source ........................................ Sylvania
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.365 A
Heater Warm-up Time ........................... 11 s
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
DC Component ............................ 200 V
Total DC and Peak ....................... 200 V

Direct Interelectrode Capacitances (approx)

Diode 1
Source ........................................ Sylvania
Input ......................................... 1.6 pf

Diode 2
Source ........................................ Sylvania
Input ......................................... 1.8 pf

Pentode
Source ........................................ Sylvania
Input ......................................... 8.0 pf
Output ........................................ 2.2 pf
Grid to Plate ................................. 0.046 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ Sylvania
Plate Voltage ................................. 330 V
Grid No. 2 Voltage ............................ 330 V
Plate Dissipation ............................. 2.5 W
Grid No. 2 Dissipation ........................ 0.55 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ Sylvania
Plate Voltage ................................. 125 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage ............................ -1 V
Plate Resistance (approx) ..................... 150K Ω
Transconductance .............................. 10000 µMho
Plate Current ................................. 12 mA
Grid No. 2 Current ............................ 4.5 mA

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Mon, 03 Oct 2022 17:54:17 -0700