Vacuum Tube - EL84, Electro-Harmonix

Vacuum Tube - EL84, Electro-Harmonix

Electro-Harmonix
Vacuum Tube - EL84, Electro-Harmonix image 1
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Starting at: $12.95
In Stock

Tube measurements are as follows:

  • Height: 2.75” (without pins)*
  • Diameter: 0.87” *

*Note: Due to the method of production in regards to the glass, measurements may vary slightly.

Apex Tube Matching
Matched versions of this tube use Apex Matching
RoHS Compliant
SKU:
T-EL84-EH
Item ID:
004854
Brand:
Electro-Harmonix, Apex Matched
Type:
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Apex Matched PairT-EL84-EH-MP609722127790
Apex Matched QuadT-EL84-EH-MQ609722127806
SingleT-EL84-EH683274021744
Product Measurements by Type
Capacitance, Transfer0.2 pF
Capacitance, input11 pF
Capacitance, output7.0 pF
Cathode to Heater Insulation Resistance5.0 MΩ
Cathode to Heater Voltage100 V
Grid 1 Reverse Current1 μA
Grid 1 Voltage-7.3 V
Grid 2 Current10 mA
Grid 2 Voltage250 V
Grid Circuit Resistance (Rg)0.51 MΩ
Heater Current700 mA - 820 mA
Heater Voltage55.7 V - 6.3 V
Non-linear Distortion Ratio17 %
Output Power (POut)5.5 W
Plate Circuit Resistance5.2 kΩ
Plate Current (Ia)44 mA - 64 mA
Plate Voltage (Ua)250 V
Transconductance (S)9.0 mA/V - 11.3 mA/V
Packaging Information
Packaging DimensionsApex Matched Pair versionT-EL84-EH-MP3.25 in. × 2 in. × 1 in.
Apex Matched Quad versionT-EL84-EH-MQ3.25 in. × 2 in. × 2 in.
Single versionT-EL84-EH1.1 in. × 1.1 in. × 3.4 in.
Weight (Packaging)Apex Matched Pair versionT-EL84-EH-MP0.1 lbs.
Apex Matched Quad versionT-EL84-EH-MQ0.2 lbs.
Single versionT-EL84-EH0.05 lbs.
Product Measurements by Item
T-EL84-EH-MP - Apex Matched Pair versionCapacitance, Transfer0.2 pF
Capacitance, input11 pF
Capacitance, output7.0 pF
Cathode to Heater Insulation Resistance5.0 MΩ
Cathode to Heater Voltage100 V
Grid 1 Reverse Current1 μA
Grid 1 Voltage-7.3 V
Grid 2 Current10 mA
Grid 2 Voltage250 V
Grid Circuit Resistance (Rg)0.51 MΩ
Heater Current700 mA - 820 mA
Heater Voltage55.7 V - 6.3 V
Non-linear Distortion Ratio17 %
Output Power (POut)5.5 W
Plate Circuit Resistance5.2 kΩ
Plate Current (Ia)44 mA - 64 mA
Plate Voltage (Ua)250 V
Transconductance (S)9.0 mA/V - 11.3 mA/V
T-EL84-EH-MQ - Apex Matched Quad versionCapacitance, Transfer0.2 pF
Capacitance, input11 pF
Capacitance, output7.0 pF
Cathode to Heater Insulation Resistance5.0 MΩ
Cathode to Heater Voltage100 V
Grid 1 Reverse Current1 μA
Grid 1 Voltage-7.3 V
Grid 2 Current10 mA
Grid 2 Voltage250 V
Grid Circuit Resistance (Rg)0.51 MΩ
Heater Current700 mA - 820 mA
Heater Voltage55.7 V - 6.3 V
Non-linear Distortion Ratio17 %
Output Power (POut)5.5 W
Plate Circuit Resistance5.2 kΩ
Plate Current (Ia)44 mA - 64 mA
Plate Voltage (Ua)250 V
Transconductance (S)9.0 mA/V - 11.3 mA/V
T-EL84-EH - Single versionCapacitance, Transfer0.2 pF
Capacitance, input11 pF
Capacitance, output7.0 pF
Cathode to Heater Insulation Resistance5.0 MΩ
Cathode to Heater Voltage100 V
Grid 1 Reverse Current1 μA
Grid 1 Voltage-7.3 V
Grid 2 Current10 mA
Grid 2 Voltage250 V
Grid Circuit Resistance (Rg)0.51 MΩ
Heater Current700 mA - 820 mA
Heater Voltage55.7 V - 6.3 V
Non-linear Distortion Ratio17 %
Output Power (POut)5.5 W
Plate Circuit Resistance5.2 kΩ
Plate Current (Ia)44 mA - 64 mA
Plate Voltage (Ua)250 V
Transconductance (S)9.0 mA/V - 11.3 mA/V

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet229.1 KB

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on October 25th, 2017.
Matt H.
October 25th, 2017
Staff Member
No this pedal uses a 12AX7 (ECC83) and the EL84 is not compatible.

Product Reviews

4.88 out of 5 based on 8 reviews
- June 30th, 2020
4 out of 5

Great in my pro junior!

- May 22nd, 2020
5 out of 5

Excellent performance and sound, Im very pleased. Your the best. Will definitely do business again for my tube needs.

- May 22nd, 2020
5 out of 5

most excellent sound and performance. your the best, will do a lot of business with you for sure over time.

- February 10th, 2017
5 out of 5

Very, very pleased with these in my Orange AD-15.
More balanced, articulate and open compared to the JJs I had in there, which were good but a bit too meaty and dense sounding for this amp. Fast turnaround on my order too.

- January 30th, 2016
5 out of 5

See my review on Electro-Harmonix 12AX7. I bought the matched pair of EL84s and I now have a completely different amp (along with a few other changes)

- December 15th, 2015
5 out of 5

Awesome. Quick delivery, solid packaging and the tubes I bought work excellent! Thank you

- March 15th, 2015
5 out of 5

Great sound, very clear with good headroom and a nice tight crunch when cranked although I use a Digitech unit for driving it. Installed it in my Blackheart BH5-112 which I use to gig with every weekend after I mic it up. Small amps are the way to go. I started with a Fender Deluxe Reverb and went up in power from there and now down to using a 5 watter! Great price on tubes, great service and now my main source for amp parts.

- August 17th, 2014
5 out of 5

I don't know a ton about tubes, but I put these in an old Univox amp to replace a pair of failing Sovteks. I prefer to use a volume boost pedal and let the power tubes distort for a more natural, dynamic sound vs using dirt/fuzz pedals. To my ears these were louder (could just be that the old Sovteks were toast) but certainly a more well balanced distorted tone, full lows, mids and highs. Sounds pretty great right now, I'm happy with the purchase.

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.