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Name: 6L6 Use: Metal tube type used in the output stage of audio amplifying equipment, especially units designed to have ample reserve of power-delivering ability. This tube, like other power-handling tubes, should be adequately ventilated. Notes: Requires an octal socket. |
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6L6 Beam Power Pentode Characteristics Data Source. . . . . . . . . RC-15 Heater or Filament Voltage . 6.3 volts Heater or Filament Current . 0.9 amperes EIA Base . . . . . . . . . . 7AC Substitutes. . . . . . . . . 5881 7581 |
Capacitances and Design Maximum Values: Capacitances and Design Maximum Values C/in. . . . . . . . . . . . 10 pf C/out . . . . . . . . . . . 12 pf C/gp. . . . . . . . . . . . 0.4 pf Plate Dissipation . . . . . 19 watts Screen Dissipation. . . . . 2.5 watts Maximum Plate Voltage . . . 360 volts Maximum Screen Voltage. . . 270 volts |
Typical Operation as a Receiving Tube
Description Ep Eg EgMax Es Is IsMax Ip IpMax Rp TC AF Zl PO
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Class A Amp(Tri)250 -20 8 - - - 40 44 1.7K 4700 - 5K 1.4
Class A Amp(Tri)250 490* 8 - - - 40 42 1.7K 4700 - 6K 1.3
Class A Amp 250 -14 14 250 5 7.3 72 79 22.5K 6000 - 2.5K 6.5
Class A Amp 250 167* 14 250 5.4 7.2 75 78 - - - 2.5K 6.5
Class A Amp 300 -12.5 12.5 200 2.5 4.7 48 55 35K 5300 - 4.5K 6.5
Class A Amp 300 218* 12.7 200 3 4.6 51 55 - - - 4.5K 6.5
Class A Amp 350 -18 18 250 2.5 7 54 66 33K 5200 - 4.2K 10.8
PP Class A Amp 250 125* 35.6 250 10 15 120 130 - - - 5K 13.8
PP Class A Amp 270 125* 28.2 270 11 17 134 145 - - - 5K 18.5
PP Class A Amp 250 -16 32 250 10 16 120 140 24.5 5500 - 5K 14.5
PP Class A Amp 270 -17.5 35 270 11 17 134 155 23.5 5700 - 5K 17.5
PP Class AB1 270 125* 40 270 11 17 134 145 - - - 5K 18.5
PP Class AB1 360 -22.5 45 270 5 11 88 140 - - - 3.8K 18
PP Class AB1 360 -22.5 45 270 5 15 88 132 - - - 6.6K 26.5
PP Class AB1 360 250* 57 270 5 17 88 100 - - - 9K 24.5
PP Class AB2 360 -18 52 225 3.5 11 78 42 - - - 6K 31
PP Class AB2 360 -22.5 72 270 5 16 88 205 - - - 3.8K 47
Typical Operation as a Transmitting Tube
Class of Service Ep Es Esup Eg EgMax Ip IpMax Is IsMax Ig Drive Zl Po
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Class C Osc/Amp 375 200 - -35 - 88 - 9 - 3.5 0.18 - 17
Class C Mod Amp
(Plate) 325 - - -70 - 65 - - - 9 0.8 - 11
* = Value of cathode bias resistor
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