Vacuum Tube - EL84, JJ Electronics
The JJ Electronic EL84 is a solidly built EL84 / 6BQ5 with excellent tonal qualities. JJ’s rugged construction of this tube offers high reliability without any compromise to the sound. This tube has solid lows with warm bright mids and shimmery highs. When saturated the harmonics are rich and dynamic. The JJ EL84 nails the classic sound of this tube. This tube can replace any EL84 or 6BQ5 tube.
Matched versions of this tube use Apex Matching
Choose burned-in tubes for maximum stability and performance.
RoHS Compliant
Accessory Items:
| Single or Matched | Our Part Number | UPC/EAN | JJ Electronics Part Number |
|---|---|---|---|
| Apex Matched Pair | T-EL84-JJ-MP | 609722123105 | |
| Apex Matched Quad | T-EL84-JJ-MQ | 609722123112 | |
| Apex Burned-In Matched Pair | T-EL84-JJ-MPB | 841358108914 | |
| Apex Burned-In Matched Quad | T-EL84-JJ-MQB | 841358108921 | |
| Single | T-EL84-JJ | 609722123099 | EL84 - 6BQ5 |
| Body Height | 71.4 mm | ||
| Cathode Current (Ik) | ≤ 65 mA | ||
| Filament Current (If) | 0.76 A | ||
| Filament Voltage (Uf) | 6.3 V | ||
| Gain (μ) | 19 | ||
| Grid 1 to filament capacitance (cg1f) | 0.15 pF | ||
| Grid Circuit Resistance 1 (Rg1), Automatic Bias | 1 MΩ | ||
| Grid Circuit Resistance 1 (Rg1), Fixed Bias | 0.3 MΩ | ||
| Grid Voltage 1 (Ug1) | ≥ -100 V, -7.3 V typical | ||
| Grid Voltage 2 (Ug2) | ≤ 300 V, 250 V typical | ||
| Grid to Cathode Capacitance (cg/k) | 10 pF | ||
| Grid to Plate Capacitance (ca/g) | 0.6 pF | ||
| Heater to cathode voltage (Uk/f) | ≤ 100 V | ||
| Internal Resistance (Ri) | 40 kΩ | ||
| Item Diameter | 22 mm | ||
| Item Height | 77.8 mm | ||
| Plate Capacitance (ca) | 5.1 pF | ||
| Plate Current (Ia) | 48 mA | ||
| Plate Dissipation (Wa) | ≤ 12 W | ||
| Plate Voltage (Ua) | ≤ 300 V, 250 V typical | ||
| Transconductance (S) | 11.3 mA/V | ||
| Packaging Dimensions | Apex Burned-In Matched Pair version | T-EL84-JJ-MPB | 1 in. × 2.1 in. × 3.8 in. |
| Apex Burned-In Matched Quad version | T-EL84-JJ-MQB | 2.1 in. × 2.1 in. × 3.8 in. | |
| Apex Matched Pair version | T-EL84-JJ-MP | 1 in. × 2.1 in. × 3.8 in. | |
| Apex Matched Quad version | T-EL84-JJ-MQ | 2.1 in. × 2.1 in. × 3.8 in. | |
| Single version | T-EL84-JJ | 1 in. × 1 in. × 3.6 in. | |
| Weight (Packaging) | Apex Burned-In Matched Pair version | T-EL84-JJ-MPB | 0.0794 lbs. |
| Apex Burned-In Matched Quad version | T-EL84-JJ-MQB | 0.1588 lbs. | |
| Apex Matched Pair version | T-EL84-JJ-MP | 0.0794 lbs. | |
| Apex Matched Quad version | T-EL84-JJ-MQ | 0.1588 lbs. | |
| Single version | T-EL84-JJ | 0.0397 lbs. |
| T-EL84-JJ-MP - Apex Matched Pair version | Body Height | 71.4 mm |
| Cathode Current (Ik) | ≤ 65 mA | |
| Filament Current (If) | 0.76 A | |
| Filament Voltage (Uf) | 6.3 V | |
| Gain (μ) | 19 | |
| Grid 1 to filament capacitance (cg1f) | 0.15 pF | |
| Grid Circuit Resistance 1 (Rg1), Automatic Bias | 1 MΩ | |
| Grid Circuit Resistance 1 (Rg1), Fixed Bias | 0.3 MΩ | |
| Grid Voltage 1 (Ug1) | ≥ -100 V, -7.3 V typical | |
| Grid Voltage 2 (Ug2) | ≤ 300 V, 250 V typical | |
| Grid to Cathode Capacitance (cg/k) | 10 pF | |
| Grid to Plate Capacitance (ca/g) | 0.6 pF | |
| Heater to cathode voltage (Uk/f) | ≤ 100 V | |
| Internal Resistance (Ri) | 40 kΩ | |
| Item Diameter | 22 mm | |
| Item Height | 77.8 mm | |
| Plate Capacitance (ca) | 5.1 pF | |
| Plate Current (Ia) | 48 mA | |
| Plate Dissipation (Wa) | ≤ 12 W | |
| Plate Voltage (Ua) | ≤ 300 V, 250 V typical | |
| Transconductance (S) | 11.3 mA/V | |
| T-EL84-JJ-MQ - Apex Matched Quad version | Body Height | 71.4 mm |
| Cathode Current (Ik) | ≤ 65 mA | |
| Filament Current (If) | 0.76 A | |
| Filament Voltage (Uf) | 6.3 V | |
| Gain (μ) | 19 | |
| Grid 1 to filament capacitance (cg1f) | 0.15 pF | |
| Grid Circuit Resistance 1 (Rg1), Automatic Bias | 1 MΩ | |
| Grid Circuit Resistance 1 (Rg1), Fixed Bias | 0.3 MΩ | |
| Grid Voltage 1 (Ug1) | ≥ -100 V, -7.3 V typical | |
| Grid Voltage 2 (Ug2) | ≤ 300 V, 250 V typical | |
| Grid to Cathode Capacitance (cg/k) | 10 pF | |
| Grid to Plate Capacitance (ca/g) | 0.6 pF | |
| Heater to cathode voltage (Uk/f) | ≤ 100 V | |
| Internal Resistance (Ri) | 40 kΩ | |
| Item Diameter | 22 mm | |
| Item Height | 77.8 mm | |
| Plate Capacitance (ca) | 5.1 pF | |
| Plate Current (Ia) | 48 mA | |
| Plate Dissipation (Wa) | ≤ 12 W | |
| Plate Voltage (Ua) | ≤ 300 V, 250 V typical | |
| Transconductance (S) | 11.3 mA/V | |
| T-EL84-JJ-MPB - Apex Burned-In Matched Pair version | Body Height | 71.4 mm |
| Cathode Current (Ik) | ≤ 65 mA | |
| Filament Current (If) | 0.76 A | |
| Filament Voltage (Uf) | 6.3 V | |
| Gain (μ) | 19 | |
| Grid 1 to filament capacitance (cg1f) | 0.15 pF | |
| Grid Circuit Resistance 1 (Rg1), Automatic Bias | 1 MΩ | |
| Grid Circuit Resistance 1 (Rg1), Fixed Bias | 0.3 MΩ | |
| Grid Voltage 1 (Ug1) | ≥ -100 V, -7.3 V typical | |
| Grid Voltage 2 (Ug2) | ≤ 300 V, 250 V typical | |
| Grid to Cathode Capacitance (cg/k) | 10 pF | |
| Grid to Plate Capacitance (ca/g) | 0.6 pF | |
| Heater to cathode voltage (Uk/f) | ≤ 100 V | |
| Internal Resistance (Ri) | 40 kΩ | |
| Item Diameter | 22 mm | |
| Item Height | 77.8 mm | |
| Plate Capacitance (ca) | 5.1 pF | |
| Plate Current (Ia) | 48 mA | |
| Plate Dissipation (Wa) | ≤ 12 W | |
| Plate Voltage (Ua) | ≤ 300 V, 250 V typical | |
| Transconductance (S) | 11.3 mA/V | |
| T-EL84-JJ-MQB - Apex Burned-In Matched Quad version | Body Height | 71.4 mm |
| Cathode Current (Ik) | ≤ 65 mA | |
| Filament Current (If) | 0.76 A | |
| Filament Voltage (Uf) | 6.3 V | |
| Gain (μ) | 19 | |
| Grid 1 to filament capacitance (cg1f) | 0.15 pF | |
| Grid Circuit Resistance 1 (Rg1), Automatic Bias | 1 MΩ | |
| Grid Circuit Resistance 1 (Rg1), Fixed Bias | 0.3 MΩ | |
| Grid Voltage 1 (Ug1) | ≥ -100 V, -7.3 V typical | |
| Grid Voltage 2 (Ug2) | ≤ 300 V, 250 V typical | |
| Grid to Cathode Capacitance (cg/k) | 10 pF | |
| Grid to Plate Capacitance (ca/g) | 0.6 pF | |
| Heater to cathode voltage (Uk/f) | ≤ 100 V | |
| Internal Resistance (Ri) | 40 kΩ | |
| Item Diameter | 22 mm | |
| Item Height | 77.8 mm | |
| Plate Capacitance (ca) | 5.1 pF | |
| Plate Current (Ia) | 48 mA | |
| Plate Dissipation (Wa) | ≤ 12 W | |
| Plate Voltage (Ua) | ≤ 300 V, 250 V typical | |
| Transconductance (S) | 11.3 mA/V | |
| T-EL84-JJ - Single version | Body Height | 71.4 mm |
| Cathode Current (Ik) | ≤ 65 mA | |
| Filament Current (If) | 0.76 A | |
| Filament Voltage (Uf) | 6.3 V | |
| Gain (μ) | 19 | |
| Grid 1 to filament capacitance (cg1f) | 0.15 pF | |
| Grid Circuit Resistance 1 (Rg1), Automatic Bias | 1 MΩ | |
| Grid Circuit Resistance 1 (Rg1), Fixed Bias | 0.3 MΩ | |
| Grid Voltage 1 (Ug1) | ≥ -100 V, -7.3 V typical | |
| Grid Voltage 2 (Ug2) | ≤ 300 V, 250 V typical | |
| Grid to Cathode Capacitance (cg/k) | 10 pF | |
| Grid to Plate Capacitance (ca/g) | 0.6 pF | |
| Heater to cathode voltage (Uk/f) | ≤ 100 V | |
| Internal Resistance (Ri) | 40 kΩ | |
| Item Diameter | 22 mm | |
| Item Height | 77.8 mm | |
| Plate Capacitance (ca) | 5.1 pF | |
| Plate Current (Ia) | 48 mA | |
| Plate Dissipation (Wa) | ≤ 12 W | |
| Plate Voltage (Ua) | ≤ 300 V, 250 V typical | |
| Transconductance (S) | 11.3 mA/V |
 Specification Sheet | All Models |
My Project Lists
Specifications, Files, and Documents
Questions? Contact us at [email protected], or give us a call at 480-820-5411
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.
Product Reviews
Fast service from this company on hard to find vacuum tubes! Still looking for 12ax7's!
Perfect product! I love that these were Apex matched and that I could find tubes. I popped one and was able to find this pair. I replace both if I drop only one - - keep them matched.
The service was fantastic, shipping was quick and secure. Great place to order tubes or any other guitar needs
I purchased a set of JJ el84s, great price and fast delivery. I’m very happy with how securely the tubes were packaged and will absolutely continue to purchase vacuum tubes from here again
Great Service and fast shipping!
A complete re-tube using JJ EL84's and 12AX7's in my Stage Right by Monoprice 15 watt amp completely restored the amp's volume and greatly improved the tone.
A friend recommended JJ tubes for my Bugera T5. I couldn't be happier. A bright sound with just enough gain.
Good solid tube that will certainly get the job done. I find they cant take the heat over time. If you really want to bring a CL30 to life and not worry about replacing every 3-4 months, go with the EH version.
JJ tubes are by far the best value on the market and they have been for some time now as far as I am concerned...and with the additional expertise of antique electronics and there Apex matching process you will be hard pressed to find anything better...just give them a try
They are really matched. I set bias for individual tubes and made them run at the same current. After couple days burned in, I rechecked, currents of each tube are still in sync, although the current increased a little bit due to burning in process. PS: the tubes were fixed biased
Antique Electronic Supply is the best! Excellent quality parts, excellent customer service, excellent shipping! I got my parts very fast in perfect condition.