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Vacuum Tube - EL34, JJ Electronics

Name: Vacuum Tube - EL34, JJ Electronics
Brand: JJ Electronics, Apex Matched
SKU: T-EL34-JJ
Price: 23.45 USD
Availability: InStock
Rating: 4.13 (8 reviews)

Starting at: $23^.45

In Stock

The JJ Electronic EL34 is another classic from JJ. This tube features a rugged construction leading to an incredibly reliable EL34 with astonishing tone. Overall the sound is nicely balanced with tight lows, a rich and dynamic mid range and clear highs. The JJ EL34 is a great replacement for guitar amplifiers and stereo amps as well.

Matched versions of this tube use Apex Matching

Choose burned-in tubes for maximum stability and performance.

SKU:

T-EL34-JJ

Item ID:

004841

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
Single	T-EL34-JJ	609722123020	EL34
Apex Matched Pair	T-EL34-JJ-MP	609722123037
Apex Matched Quad	T-EL34-JJ-MQ	609722123044
Apex Burned-In Matched Pair	T-EL34-JJ-MPB	609722123051
Apex Matched Sextet	T-EL34-JJ-MS	609722166881
Apex Burned-In Matched Quad	T-EL34-JJ-MQB	609722123068

Measurements by Type
Measurements by Item

Body Height			98 mm
Cathode Current (I_k)			≤ 150 mA
Filament Current (I_f)			1.5 A
Filament Voltage (U_f)			6.3 V
Gain (μ_g2/g2)			11
Grid 2 dissipation (W_g2)			8 W
Grid Current 2 (I_g2)			14.9 mA
Grid Voltage 1 (U_g1)			-10 V to -13.5 V typical
Grid Voltage 2 (U_g2)			≤ 450 V, 265 V typical
Grid Voltage 3 (U_g3)			0 V typical
Grid capacitance (c_g1)			15.5 pF
Grid to Plate Capacitance (c_a/g)			1.3 pF
Heater to cathode resistance (R_k/f)			20 kΩ
Heater to cathode voltage (U_k/f)			≤ 100 V
Internal Resistance (R_i)			15 kΩ
Item Diameter			33.3 mm
Item Height			112 mm
Plate Capacitance (c_a)			10 pF
Plate Current (I_a)			100 mA
Plate Dissipation (W_a)			≤ 25 W
Plate Voltage (U_a)			≤ 800 V, 250 V typical
Transconductance (S)			11 mA/V

Packaging Information
Packaging Dimensions	Apex Burned-In Matched Pair version	T-EL34-JJ-MPB	4.6 in. × 3.3 in. × 1.6 in.
	Apex Burned-In Matched Quad version	T-EL34-JJ-MQB	4.6 in. × 3.3 in. × 3.3 in.
	Apex Matched Pair version	T-EL34-JJ-MP	1.6 in. × 3.3 in. × 4.6 in.
	Apex Matched Quad version	T-EL34-JJ-MQ	3.3 in. × 3.3 in. × 4.6 in.
	Apex Matched Sextet version	T-EL34-JJ-MS	13.8 in. × 3.3 in. × 1.6 in.
	Single version	T-EL34-JJ	1.6 in. × 1.6 in. × 4.6 in.
Weight (Packaging)	Apex Burned-In Matched Pair version	T-EL34-JJ-MPB	0.2514 lbs.
	Apex Burned-In Matched Quad version	T-EL34-JJ-MQB	0.5028 lbs.
	Apex Matched Pair version	T-EL34-JJ-MP	0.2514 lbs.
	Apex Matched Quad version	T-EL34-JJ-MQ	0.5028 lbs.
	Apex Matched Sextet version	T-EL34-JJ-MS	0.7542 lbs.
	Single version	T-EL34-JJ	0.1257 lbs.

T-EL34-JJ-MP - Apex Matched Pair version	Body Height	98 mm
	Cathode Current (I_k)	≤ 150 mA
	Filament Current (I_f)	1.5 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ_g2/g2)	11
	Grid 2 dissipation (W_g2)	8 W
	Grid Current 2 (I_g2)	14.9 mA
	Grid Voltage 1 (U_g1)	-10 V to -13.5 V typical
	Grid Voltage 2 (U_g2)	≤ 450 V, 265 V typical
	Grid Voltage 3 (U_g3)	0 V typical
	Grid capacitance (c_g1)	15.5 pF
	Grid to Plate Capacitance (c_a/g)	1.3 pF
	Heater to cathode resistance (R_k/f)	20 kΩ
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	15 kΩ
	Item Diameter	33.3 mm
	Item Height	112 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current (I_a)	100 mA
	Plate Dissipation (W_a)	≤ 25 W
	Plate Voltage (U_a)	≤ 800 V, 250 V typical
	Transconductance (S)	11 mA/V
T-EL34-JJ-MQ - Apex Matched Quad version	Body Height	98 mm
	Cathode Current (I_k)	≤ 150 mA
	Filament Current (I_f)	1.5 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ_g2/g2)	11
	Grid 2 dissipation (W_g2)	8 W
	Grid Current 2 (I_g2)	14.9 mA
	Grid Voltage 1 (U_g1)	-10 V to -13.5 V typical
	Grid Voltage 2 (U_g2)	≤ 450 V, 265 V typical
	Grid Voltage 3 (U_g3)	0 V typical
	Grid capacitance (c_g1)	15.5 pF
	Grid to Plate Capacitance (c_a/g)	1.3 pF
	Heater to cathode resistance (R_k/f)	20 kΩ
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	15 kΩ
	Item Diameter	33.3 mm
	Item Height	112 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current (I_a)	100 mA
	Plate Dissipation (W_a)	≤ 25 W
	Plate Voltage (U_a)	≤ 800 V, 250 V typical
	Transconductance (S)	11 mA/V
T-EL34-JJ-MS - Apex Matched Sextet version	Body Height	98 mm
	Cathode Current (I_k)	≤ 150 mA
	Filament Current (I_f)	1.5 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ_g2/g2)	11
	Grid 2 dissipation (W_g2)	8 W
	Grid Current 2 (I_g2)	14.9 mA
	Grid Voltage 1 (U_g1)	-10 V to -13.5 V typical
	Grid Voltage 2 (U_g2)	≤ 450 V, 265 V typical
	Grid Voltage 3 (U_g3)	0 V typical
	Grid capacitance (c_g1)	15.5 pF
	Grid to Plate Capacitance (c_a/g)	1.3 pF
	Heater to cathode resistance (R_k/f)	20 kΩ
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	15 kΩ
	Item Diameter	33.3 mm
	Item Height	112 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current (I_a)	100 mA
	Plate Dissipation (W_a)	≤ 25 W
	Plate Voltage (U_a)	≤ 800 V, 250 V typical
	Transconductance (S)	11 mA/V
T-EL34-JJ-MPB - Apex Burned-In Matched Pair version	Body Height	98 mm
	Cathode Current (I_k)	≤ 150 mA
	Filament Current (I_f)	1.5 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ_g2/g2)	11
	Grid 2 dissipation (W_g2)	8 W
	Grid Current 2 (I_g2)	14.9 mA
	Grid Voltage 1 (U_g1)	-10 V to -13.5 V typical
	Grid Voltage 2 (U_g2)	≤ 450 V, 265 V typical
	Grid Voltage 3 (U_g3)	0 V typical
	Grid capacitance (c_g1)	15.5 pF
	Grid to Plate Capacitance (c_a/g)	1.3 pF
	Heater to cathode resistance (R_k/f)	20 kΩ
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	15 kΩ
	Item Diameter	33.3 mm
	Item Height	112 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current (I_a)	100 mA
	Plate Dissipation (W_a)	≤ 25 W
	Plate Voltage (U_a)	≤ 800 V, 250 V typical
	Transconductance (S)	11 mA/V
T-EL34-JJ-MQB - Apex Burned-In Matched Quad version	Body Height	98 mm
	Cathode Current (I_k)	≤ 150 mA
	Filament Current (I_f)	1.5 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ_g2/g2)	11
	Grid 2 dissipation (W_g2)	8 W
	Grid Current 2 (I_g2)	14.9 mA
	Grid Voltage 1 (U_g1)	-10 V to -13.5 V typical
	Grid Voltage 2 (U_g2)	≤ 450 V, 265 V typical
	Grid Voltage 3 (U_g3)	0 V typical
	Grid capacitance (c_g1)	15.5 pF
	Grid to Plate Capacitance (c_a/g)	1.3 pF
	Heater to cathode resistance (R_k/f)	20 kΩ
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	15 kΩ
	Item Diameter	33.3 mm
	Item Height	112 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current (I_a)	100 mA
	Plate Dissipation (W_a)	≤ 25 W
	Plate Voltage (U_a)	≤ 800 V, 250 V typical
	Transconductance (S)	11 mA/V
T-EL34-JJ - Single version	Body Height	98 mm
	Cathode Current (I_k)	≤ 150 mA
	Filament Current (I_f)	1.5 A
	Filament Voltage (U_f)	6.3 V
	Gain (μ_g2/g2)	11
	Grid 2 dissipation (W_g2)	8 W
	Grid Current 2 (I_g2)	14.9 mA
	Grid Voltage 1 (U_g1)	-10 V to -13.5 V typical
	Grid Voltage 2 (U_g2)	≤ 450 V, 265 V typical
	Grid Voltage 3 (U_g3)	0 V typical
	Grid capacitance (c_g1)	15.5 pF
	Grid to Plate Capacitance (c_a/g)	1.3 pF
	Heater to cathode resistance (R_k/f)	20 kΩ
	Heater to cathode voltage (U_k/f)	≤ 100 V
	Internal Resistance (R_i)	15 kΩ
	Item Diameter	33.3 mm
	Item Height	112 mm
	Plate Capacitance (c_a)	10 pF
	Plate Current (I_a)	100 mA
	Plate Dissipation (W_a)	≤ 25 W
	Plate Voltage (U_a)	≤ 800 V, 250 V typical
	Transconductance (S)	11 mA/V

Specification Sheet	All Models

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Specification Sheet

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Product Reviews

4.13 out of 5 based on 8 reviews

MickeyMack747 - January 29th, 2023

5 out of 5

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These JJ Electronics EL34 main tubes have an excellent tone. They are just as good as the Mesa factory equipment. Amplified parts got these tube to me in 3 days! Ecellent service!!!

MickeyMack747 - January 29th, 2023

5 out of 5

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These JJ Electronics EL34 main tubes have an excellent tone. They are just as good as the Mesa factory equipment. Amplified parts got these tube to me in 3 days! Ecellent service!!!

Peter R - December 7th, 2022

5 out of 5

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Seems to work well.

John W Staite - November 10th, 2022

5 out of 5

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I like the JJ tubes EL34 and 12AX7 .I chose a different set of 12 AX7s on my current order because you said the JJ 12AX7s were out of stock .

Roger Lamoureux - July 12th, 2022

5 out of 5

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Fast shipping.
Have not used them yet, but JJ's always find a home, in my Musicman HD130-R

P.W. - June 29th, 2020

1 out of 5

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... and now one of them died and blew a fuse.
The matching on these were nice and tight so I'm guessing these tubes are just junk.
Stick with inexpensive 'Marshall-labeled' tubes- they sound great and last for years. 40+ years with zero problems.

P.W. - June 28th, 2020

2 out of 5

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These don't go well with 1959HW or YJM100.
The low is muddy and there is a weird lower-mid honk that is VERY distracting. Highs aren't great either.
These things get worse as the tube gets more warmed up whereas most tubes sound better as they get warmer.
The JJ EL34 II's are only just ever so slightly better but not much. (I bought a set of each to try)
For Plexi's I guess I will never again venture away from Svetlana, Mullard, and Electro Harmonix. Those sound great every time.

Eddie Bourgeois - September 17th, 2019

5 out of 5

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Purchased a matched quad set with the burned in option for my EVH 5153 EL34 Stealth
Very satisfied

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.