NJ7P SQL Tube Database Query

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A horizontal ribbon.

6FE5
Beam Power Pentode

EIA Base & Outline

EIA Base: 8KBEIA Bulb: 9-33
Source ........................................ RCA RC-27 - 1973

Mechanical Data

Source ........................................ RCA RC-27 - 1973
Bulb .......................................... T-9
EIA Outline ................................... 9-33
EIA Base ...................................... 8KB

Electrical Data

Source ........................................ RCA RC-27 - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.2 A

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-27 - 1973
Input ......................................... 15.0 pf
Output ........................................ 9.0 pf
Grid to Plate ................................. 0.44 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-27 - 1973
Plate Voltage ................................. 175 V
Grid No. 2 Voltage ............................ 175 V
Plate Dissipation ............................. 14.5 W
Grid No. 2 Dissipation ........................ 2.4 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-27 - 1973
Plate Voltage ................................. 145 V
Grid No. 2 Voltage ............................ 145 V
Grid No. 1 Voltage ............................ -16 V
Plate Resistance (approx) ..................... 8000 Ω
Transconductance .............................. 9500 µMho
Plate Current ................................. 100 mA
Grid No. 2 Current ............................ 18 mA
Load Resistance ............................... 1K Ω
Power Output (approx) ......................... 5.6 W

Class A Amplifier
Source ........................................ RCA RC-27 - 1973
Plate Voltage ................................. 130 V
Grid No. 2 Voltage ............................ 130 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 120 Ω
Plate Resistance (approx) ..................... 8000 Ω
Transconductance .............................. 9500 µMho
Plate Current ................................. 88 mA
Grid No. 2 Current ............................ 5.0 mA
Load Resistance ............................... 1K Ω
Power Output (approx) ......................... 3.5 W

Class A Amplifier
Source ........................................ RCA RC-27 - 1973
Plate Voltage ................................. 130 V
Grid No. 2 Voltage ............................ 130 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 75 Ω
Plate Resistance (approx) ..................... 8000 Ω
Transconductance .............................. 9500 µMho
Plate Current ................................. 150 mA
Grid No. 2 Current ............................ 7.2 mA
Load Resistance ............................... 1.6K Ω
Power Output (approx) ......................... 7.0 W

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Thu, 30 Jun 2022 04:35:21 -0700