NJ7P SQL Tube Database Query

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A horizontal ribbon.

11BT11
Dual Triode - Sharp-Cutoff Pentode

EIA Base & Outline

EIA Base: 12GS
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Duodecar type used in tv receiver applications. The triodes are used for general-purpose applications; the pentode unit is used in video-amplifier service. Requires duodecar 12-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
EIA Base ...................................... 12GS

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 10.7 V
Heater Current ................................ 0.6 A

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 165 V
Grid No. 2 Voltage ............................ 165 V
Plate Dissipation ............................. 3.5 W
Grid No. 2 Dissipation ........................ 1.5 W

Triode 1
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 1.5 W

Triode 2
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 2 W

Characteristics and Typical Operation

Triode 1 Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 200 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 270 Ω
Amplification Factor .......................... 69
Plate Resistance (approx) ..................... 12.5K Ω
Transconductance .............................. 5500 µMho
Plate Current ................................. 7.1 mA

Triode 2 Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 200 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 470 Ω
Amplification Factor .......................... 40
Plate Resistance (approx) ..................... 7.6K Ω
Transconductance .............................. 5300 µMho
Plate Current ................................. 7.2 mA

Pentode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 150 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 82 Ω
Plate Resistance (approx) ..................... 51K Ω
Transconductance .............................. 19000 µMho
Plate Current ................................. 17.4 mA
Grid No. 2 Current ............................ 3.2 mA

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Wed, 07 Dec 2022 12:32:43 -0700