Vacuum Tube - EL84, JJ Electronics

Name: Vacuum Tube - EL84, JJ Electronics
Brand: JJ Electronics, Apex Matched
SKU: T-EL84-JJ
Price: 17.95 USD
Availability: InStock
Rating: 4.98 (43 reviews)

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Starting at: $17^.95

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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.

SKU:

T-EL84-JJ

Item ID:

004855

Brand:

JJ Electronics, Apex Matched

Type:

Power, Burned In

RoHS Compliant

Accessory Items:

Damper Rings - High Temperature Silicone, Red

Part Numbers
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

Measurements by Type
Measurements by Item

Body Height			71.4 mm
Cathode Current (I_k)			≤ 65 mA
Filament Current (I_f)			0.76 A
Filament Voltage (U_f)			6.3 V
Gain (μ)			19
Grid 1 to filament capacitance (c_g1f)			0.15 pF
Grid Circuit Resistance 1 (R_g1), Automatic Bias			1 MΩ
Grid Circuit Resistance 1 (R_g1), Fixed Bias			0.3 MΩ
Grid Voltage 1 (U_g1)			≥ -100 V, -7.3 V typical
Grid Voltage 2 (U_g2)			≤ 300 V, 250 V typical
Grid to Cathode Capacitance (c_g/k)			10 pF
Grid to Plate Capacitance (c_a/g)			0.6 pF
Heater to cathode voltage (U_k/f)			≤ 100 V
Internal Resistance (R_i)			40 kΩ
Item Diameter			22 mm
Item Height			77.8 mm
Plate Capacitance (c_a)			5.1 pF
Plate Current (I_a)			48 mA
Plate Dissipation (W_a)			≤ 12 W
Plate Voltage (U_a)			≤ 300 V, 250 V typical
Transconductance (S)			11.3 mA/V

Packaging Information
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 (I_k)	≤ 65 mA
	Filament Current (I_f)	0.76 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ)	19
	Grid 1 to filament capacitance (c_g1f)	0.15 pF
	Grid Circuit Resistance 1 (R_g1), Automatic Bias	1 MΩ
	Grid Circuit Resistance 1 (R_g1), Fixed Bias	0.3 MΩ
	Grid Voltage 1 (U_g1)	≥ -100 V, -7.3 V typical
	Grid Voltage 2 (U_g2)	≤ 300 V, 250 V typical
	Grid to Cathode Capacitance (c_g/k)	10 pF
	Grid to Plate Capacitance (c_a/g)	0.6 pF
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	40 kΩ
	Item Diameter	22 mm
	Item Height	77.8 mm
	Plate Capacitance (c_a)	5.1 pF
	Plate Current (I_a)	48 mA
	Plate Dissipation (W_a)	≤ 12 W
	Plate Voltage (U_a)	≤ 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 (I_k)	≤ 65 mA
	Filament Current (I_f)	0.76 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ)	19
	Grid 1 to filament capacitance (c_g1f)	0.15 pF
	Grid Circuit Resistance 1 (R_g1), Automatic Bias	1 MΩ
	Grid Circuit Resistance 1 (R_g1), Fixed Bias	0.3 MΩ
	Grid Voltage 1 (U_g1)	≥ -100 V, -7.3 V typical
	Grid Voltage 2 (U_g2)	≤ 300 V, 250 V typical
	Grid to Cathode Capacitance (c_g/k)	10 pF
	Grid to Plate Capacitance (c_a/g)	0.6 pF
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	40 kΩ
	Item Diameter	22 mm
	Item Height	77.8 mm
	Plate Capacitance (c_a)	5.1 pF
	Plate Current (I_a)	48 mA
	Plate Dissipation (W_a)	≤ 12 W
	Plate Voltage (U_a)	≤ 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 (I_k)	≤ 65 mA
	Filament Current (I_f)	0.76 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ)	19
	Grid 1 to filament capacitance (c_g1f)	0.15 pF
	Grid Circuit Resistance 1 (R_g1), Automatic Bias	1 MΩ
	Grid Circuit Resistance 1 (R_g1), Fixed Bias	0.3 MΩ
	Grid Voltage 1 (U_g1)	≥ -100 V, -7.3 V typical
	Grid Voltage 2 (U_g2)	≤ 300 V, 250 V typical
	Grid to Cathode Capacitance (c_g/k)	10 pF
	Grid to Plate Capacitance (c_a/g)	0.6 pF
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	40 kΩ
	Item Diameter	22 mm
	Item Height	77.8 mm
	Plate Capacitance (c_a)	5.1 pF
	Plate Current (I_a)	48 mA
	Plate Dissipation (W_a)	≤ 12 W
	Plate Voltage (U_a)	≤ 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 (I_k)	≤ 65 mA
	Filament Current (I_f)	0.76 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ)	19
	Grid 1 to filament capacitance (c_g1f)	0.15 pF
	Grid Circuit Resistance 1 (R_g1), Automatic Bias	1 MΩ
	Grid Circuit Resistance 1 (R_g1), Fixed Bias	0.3 MΩ
	Grid Voltage 1 (U_g1)	≥ -100 V, -7.3 V typical
	Grid Voltage 2 (U_g2)	≤ 300 V, 250 V typical
	Grid to Cathode Capacitance (c_g/k)	10 pF
	Grid to Plate Capacitance (c_a/g)	0.6 pF
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	40 kΩ
	Item Diameter	22 mm
	Item Height	77.8 mm
	Plate Capacitance (c_a)	5.1 pF
	Plate Current (I_a)	48 mA
	Plate Dissipation (W_a)	≤ 12 W
	Plate Voltage (U_a)	≤ 300 V, 250 V typical
	Transconductance (S)	11.3 mA/V
T-EL84-JJ - Single version	Body Height	71.4 mm
	Cathode Current (I_k)	≤ 65 mA
	Filament Current (I_f)	0.76 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ)	19
	Grid 1 to filament capacitance (c_g1f)	0.15 pF
	Grid Circuit Resistance 1 (R_g1), Automatic Bias	1 MΩ
	Grid Circuit Resistance 1 (R_g1), Fixed Bias	0.3 MΩ
	Grid Voltage 1 (U_g1)	≥ -100 V, -7.3 V typical
	Grid Voltage 2 (U_g2)	≤ 300 V, 250 V typical
	Grid to Cathode Capacitance (c_g/k)	10 pF
	Grid to Plate Capacitance (c_a/g)	0.6 pF
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	40 kΩ
	Item Diameter	22 mm
	Item Height	77.8 mm
	Plate Capacitance (c_a)	5.1 pF
	Plate Current (I_a)	48 mA
	Plate Dissipation (W_a)	≤ 12 W
	Plate Voltage (U_a)	≤ 300 V, 250 V typical
	Transconductance (S)	11.3 mA/V

Specification Sheet	All Models

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Specification Sheet

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Questions? Contact us at [email protected], or give us a call at 480-820-5411

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Product Reviews

4.98 out of 5 based on 43 reviews

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Ted H - August 31st, 2023

5 out of 5

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JJ tubes are the only tubes I use for my Matchless amp, as those are the tubes my Lightning came voiced with from the factory. I’ve used these for 10+ years with no issues! Never had one fail( I don’t play out to be fair ) and I play at least 4-5 hours a week. I have a collection of NOS and other pre-amp ((12AX7) tubes and none sound better than the JJ tubes my amp came with. Cathode biased amps are hard on power tubes, I change those yearly. The pre-amp JJ tubes have never failed and are still going strong!

Mike Lamury - September 20th, 2022

5 out of 5

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Good tubes, excellent customer service and quick shipping times. I get all my tubes from Antique Electronic Supply and would definitely recommend them. Best prices I've found on tubes also. It's a no brainer- Antique Electronic Supply!

Roger Wark - August 16th, 2022

5 out of 5

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These JJs work quite well for the Fender Blues Jr series amps which have voltage problems and run too hot.

Clean yet dirty - July 11th, 2022

5 out of 5

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All around the best tube if you’re looking for clarity, transparency, yet be able to create the grit that tube amp’s are famous for.

Chasgrant - May 25th, 2022

5 out of 5

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The power tubes in my amp started sounding awful, ordered a set of matched JJ’s since they were in stock, three days later they were in my mailbox! Installed them in the amp and was very surprised. They sounded great!

Chasgrant - May 25th, 2022

5 out of 5

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Erik Epstein - May 23rd, 2022

5 out of 5

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Good tubes for the price.

Surfer - May 13th, 2022

5 out of 5

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Very good sound quality and freq range. Somewhat shorter life and runs hot in our blues Jr and Ampeg Jet amps.

Mark Boyer - April 16th, 2022

5 out of 5

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Fast service from this company on hard to find vacuum tubes! Still looking for 12ax7's!

Christopher Laskowski - April 14th, 2022

5 out of 5

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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

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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.