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6L6GB
Beam Power Pentode

Base & Bulb ( Sylvania - 1959)

Substitute Data

Preferred Substitutes ......................... 5881
Substitutes ................................... 7581

Application

Glass-octal type used in the output stage of audio amplifying equipment, especially units designed to have ample reserve of power-delivering ability. Requires octal socket. This tube, like other power-handling tubes, should be adequately ventilated.

Mechanical Data

Bulb .......................................... T-12
Base .......................................... Medium Octal
Outline ....................................... 12-15
EIA Base ...................................... 7AC
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.9 A

Direct Interelectrode Capacitances (approx)

Pentode
Input ......................................... 11.5 pf
Output ........................................ 9.5 pf
Grid to Plate ................................. 0.9 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 360 V
Grid No. 2 Voltage ............................ 270 V
Plate Dissipation ............................. 19 W
Grid No. 2 Dissipation ........................ 2.5 W

For other characteristics and typical operation, see 6L6

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