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  • Site Last Updated 12 Oct 2008.
  • This is a small selection of the more popular valves which we have designed transformers for.
  • We do not supply valves.
  • This data is extracted from various sources.
  • The characteristics shown are for a typical application.
  • Values (particularly Ra) can be varied depending on drive and HT conditions.
  • We have data on thousands of valve types.
  • We can supply transformers for most relevant types.

Abbreviated Valve Data for Single Ended Output Circuits (Output Section of Multiple Valves only)

Type Fil. Volts Fil. Amps Anode Volts Screen Volts Anode mA Screen mA Load Res Power Watts Class Base
6L6 6.3 0.9 350 250 54 2.5 4200 11 A IO
6V6 6.3 0.45 315 225 34 2.2 8500 5.5 A IO
807 6.3 0.9 300 250 83 8 2850 6.7 A UX5
DL96 1.4 0.05 85 85 5 0.9 13000 0.2 A B7G
ECL80 6.3 0.3 200 200 17.5 3.3 11000 1.4 A B9A
ECL82 6.3 0.78 250 250 28 5.5 9000 3.4 A B9A
EL34
6CA7		 6.3 1.5 250 250 100 14.9 2000 11 A IO
EL84
6BQ5		 6.3 0.76 250 250 48 5.5 5200 5.7 A B9A
EL86 6.3 0.76 170 170 70 5 24000 5.6 A B9A
EL90 6.3 0.45 250 250 45 4.5 5000 4.5 A B7G
EL91 6.3 0.2 250 250 16 2.4 16000 1.4 A B7G
EL95 6.3 0.2 250 250 24 4.5 10000 3 A B7G
KT66 6.3 1.27 250 250 85 6.3 2200 7.25 A IO
KT88 6.3 1.6 300 300 130 13.5 3500 10 A IO

Abbreviated Valve Data for Push Pull Output Circuits (Output Section of Multiple Valves only)

Type Fil. Volts Fil. Amps Anode Volts Screen Volts Anode mA Screen mA Load Res a-a Power Watts Class Base
6L6 6.3 0.9 360 270 69 8 6600 26.5 AB IO
6V6 6.3 0.45 285 285 46 6.8 8000 14 AB IO
807 6.3 0.9 600 350 150 10 12000 65 AB UX5
ECL82 6.3 0.78 200 200 39.5 16.5 6000 9.8 AB B9A
EL34
6CA7		 6.3 1.5 430 Res=1KR 70 14 6000 34 UL AB IO
EL84
6BQ5		 6.3 0.76 300 300 46 11 8000 17 AB B9A
EL90 6.3 0.45 250 250 35 2.5 10000 10 AB B7G
EL91 6.3 0.2 250 250 12.8 4.1 24000 4 AB B7G
EL95 6.3 0.2 250 250 26 7.5 10000 7 AB B7G
KT66 6.3 1.27 500 500 80 Included in Ia 8000 50 UL AB IO
KT88 6.3 1.6 550 550 150 Included in Ia 4500 100 UL AB IO

Abbreviated Valve Data for Valve Rectifiers

Type Fil. Volts Fil. Amps Circuit Input Volts RMS Anode mA Max Cap uF Min Res Series Base
EZ80 6.3 0.6 Full Wave 350-0-350 90 50 300 B9A
EZ81 6.3 1 Full Wave 350-0-350 150 50 230 B9A
EZ90 6.3 0.6 Full Wave 325-0-325 70 16 520 B9A
GZ34 5 1.9 Full Wave 550-0-550 160 60 175 IO

© 2008 Variable Voltage Technology Ltd. Document Number DCW12701.