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6GF5
Beam Power Pentode

Base & Bulb ( GE - 1973)

Substitute Data

Substitutes ................................... 6GE5

Mechanical Data

Bulb .......................................... T-9
Outline ....................................... 9-60
EIA Base ...................................... 12BJ

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.2 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 16 pf
Output ........................................ 7.5 pf
Grid to Plate ................................. 0.2 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 770 V
Grid No. 2 Voltage ............................ 220 V
Plate Dissipation ............................. 9.0 W
Grid No. 2 Dissipation ........................ 2.5 W

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -26.5 V
Plate Resistance (approx) ..................... 260K Ω
Transconductance .............................. 4700 µ
Plate Current ................................. 34 mA
Grid No. 2 Current ............................ 1.6 mA

Characteristics and Typical Operation

Horiz Defl Amplifier
DC Plate Supply Voltage ....................... 250 V
Peak Negative-Pulse Plate Voltage ............. 150 V
DC Grid No. 3 Voltage ......................... 5000 V
DC Grid No. 2 Voltage ......................... -26.5 V
Peak Negative-Pulse Grid No. 1 Voltage ........ 34 V
Average Cathode Current ....................... 160 mA

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