Vacuum Tube - 6L6, Electro-Harmonix

Vacuum Tube - 6L6, Electro-Harmonix

Electro-Harmonix
Vacuum Tube - 6L6, Electro-Harmonix image 1
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Starting at: $21.75
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Superior power Beam tetrode with large plate dimensions and improved grid structure for increased power handling capabilities. Excellent tone and performance compared to most other 6L6 or KT66 types.

  • Modeled after the vintage RCA 6L6GC "blackplate"
  • Mica spacers with metal springs eliminate tube rattle and microphonics
  • 5881/KT66 equivalent
Apex Tube Matching
Matched versions of this tube use Apex Matching
RoHS Compliant
SKU:
T-6L6-EH
Item ID:
004727
Brand:
Electro-Harmonix, Apex Matched
Type:
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Apex Matched PairT-6L6-EH-MP609722128414
Apex Matched QuadT-6L6-EH-MQ609722128421
SingleT-6L6-EH683274021713
Product Measurements by Type
Capacitance, Grid to Cathode10 pF
Capacitance, Grid to Heater10 pF
Capacitance, Grid to Screen10 pF
Capacitance, Grid to Suppressor10 pF
Capacitance, Plate to Cathode6.4 pF
Capacitance, Plate to Heater6.4 pF
Capacitance, Plate to Screen6.4 pF
Capacitance, Plate to Suppressor6.4 pF
Capacitance, grid to plate0.6 pF
Cathode Current (Ik)80 mA
Grid Circuit Resistance (Rg), Fixed Bias100 kΩ
Grid Circuit Resistance (Rg), Self Bias0.5 MΩ
Heater Current0.9 A
Heater Voltage5.7 V - 6.9 V
Heater to Cathode Voltage± 200 V
Plate Dissipation (Wa)30 W
Plate Resistance (Ra)33 kΩ
Plate Voltage (Ua)500 V
Screen Dissipation5 W
Screen Voltage450 V
Transconductance (S)5.2 mA/V
Packaging Information
Packaging DimensionsApex Matched Pair versionT-6L6-EH-MP4.75 in. × 3.5 in. × 1.75 in.
Apex Matched Quad versionT-6L6-EH-MQ5.3 in. × 4.8 in. × 3.5 in.
Single versionT-6L6-EH1.8 in. × 1.8 in. × 4.8 in.
Weight (Packaging)Apex Matched Pair versionT-6L6-EH-MP0.3 lbs.
Apex Matched Quad versionT-6L6-EH-MQ0.6 lbs.
Single versionT-6L6-EH0.15 lbs.
Product Measurements by Item
T-6L6-EH-MP - Apex Matched Pair versionCapacitance, Grid to Cathode10 pF
Capacitance, Grid to Heater10 pF
Capacitance, Grid to Screen10 pF
Capacitance, Grid to Suppressor10 pF
Capacitance, Plate to Cathode6.4 pF
Capacitance, Plate to Heater6.4 pF
Capacitance, Plate to Screen6.4 pF
Capacitance, Plate to Suppressor6.4 pF
Capacitance, grid to plate0.6 pF
Cathode Current (Ik)80 mA
Grid Circuit Resistance (Rg), Fixed Bias100 kΩ
Grid Circuit Resistance (Rg), Self Bias0.5 MΩ
Heater Current0.9 A
Heater Voltage5.7 V - 6.9 V
Heater to Cathode Voltage± 200 V
Plate Dissipation (Wa)30 W
Plate Resistance (Ra)33 kΩ
Plate Voltage (Ua)500 V
Screen Dissipation5 W
Screen Voltage450 V
Transconductance (S)5.2 mA/V
T-6L6-EH-MQ - Apex Matched Quad versionCapacitance, Grid to Cathode10 pF
Capacitance, Grid to Heater10 pF
Capacitance, Grid to Screen10 pF
Capacitance, Grid to Suppressor10 pF
Capacitance, Plate to Cathode6.4 pF
Capacitance, Plate to Heater6.4 pF
Capacitance, Plate to Screen6.4 pF
Capacitance, Plate to Suppressor6.4 pF
Capacitance, grid to plate0.6 pF
Cathode Current (Ik)80 mA
Grid Circuit Resistance (Rg), Fixed Bias100 kΩ
Grid Circuit Resistance (Rg), Self Bias0.5 MΩ
Heater Current0.9 A
Heater Voltage5.7 V - 6.9 V
Heater to Cathode Voltage± 200 V
Plate Dissipation (Wa)30 W
Plate Resistance (Ra)33 kΩ
Plate Voltage (Ua)500 V
Screen Dissipation5 W
Screen Voltage450 V
Transconductance (S)5.2 mA/V
T-6L6-EH - Single versionCapacitance, Grid to Cathode10 pF
Capacitance, Grid to Heater10 pF
Capacitance, Grid to Screen10 pF
Capacitance, Grid to Suppressor10 pF
Capacitance, Plate to Cathode6.4 pF
Capacitance, Plate to Heater6.4 pF
Capacitance, Plate to Screen6.4 pF
Capacitance, Plate to Suppressor6.4 pF
Capacitance, grid to plate0.6 pF
Cathode Current (Ik)80 mA
Grid Circuit Resistance (Rg), Fixed Bias100 kΩ
Grid Circuit Resistance (Rg), Self Bias0.5 MΩ
Heater Current0.9 A
Heater Voltage5.7 V - 6.9 V
Heater to Cathode Voltage± 200 V
Plate Dissipation (Wa)30 W
Plate Resistance (Ra)33 kΩ
Plate Voltage (Ua)500 V
Screen Dissipation5 W
Screen Voltage450 V
Transconductance (S)5.2 mA/V

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet153.98 KB

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on March 1st, 2017.
Matt H.
March 1st, 2017
Staff Member
By looking at the Valveking manual, it appears that the 6L6 is compatible with your amp.

Product Reviews

5.00 out of 5 based on 7 reviews
- June 7th, 2021
5 out of 5

This tube lets my amplifier shine. Matching is well done. Above all, the service in delivering tubes with the requested characteristics is really great!

- October 31st, 2018
5 out of 5

Excellent tube, finished my restore

- June 1st, 2017
5 out of 5

CE did the responsible action to replace a quad set when one tube lost a heater. In fact, they also replaced free of charge a second time when a heater went out again on the replacement set. Good service, peculiar incident.

- February 10th, 2016
5 out of 5

Very good

- July 20th, 2015
5 out of 5

Product meets with my expectation. I was looking for detail, warmth and responsiveness. I picked the 6L6 as substitute for the stock EL34 on my amp which lacked those characteristics particularly on the clean setting. The first brand of 6L6's that I picked up however developed this noticeable "rattle" after just a few hours of playing. This only shows up when particular notes were played on the guitar and was not present when I put the EL34's back. After some research, I decided to go for the EH brand 6L6's because of the internal construction that looks like it specifically addresses the problem I was having, in addition to it's ability to reproduce the notes exactly as I wanted; warm and detailed. So far I have not been disappointed. The valves reproduce the notes just as I expected across the fret board without introducing unwanted sounds.

The Tech Corner on Antique Electronic Supply website was a great resource that helped tremendously in the decision making process.

- February 4th, 2015
5 out of 5

This has become my universal go-to 6L6GC , and the reason is simple , Russian power tubes just seem to be more robust , and they handle higher voltages than Chinese or even JJ's . I'm guessing the Groove Tubes California made new/old GE version is superior , but costs considerably more.

- November 26th, 2014
5 out of 5

Love EH power tubes

Substitute Products

The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.