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Vacuum Tube - E34L, JJ Electronics

Customer image:<br/>"New matched quad of JJ E34Ls just installed in a Marshall DSL100H "

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Customer image: "New matched quad of JJ E34Ls just installed in a Marshall DSL100H "


SKU:	T-E34L-JJ
Item ID:	004827

Starting at: $15^.50

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Type

Power Burned In

Vacuum Tubes Apex Matched

The JJ Electronic E34L adds more power to a standard EL34 due to its higher grid voltage rating. This increase gives the tube more headroom and a tighter response on the low end. The wide frequency response of this tube offers excellent harmonics that work in a variety of genres ranging from the cleanest cleans to rich and aggressive breakup.

Matched versions of this tube use Apex Matching

Choose burned-in tubes for maximum stability and performance.

Part Numbers
Single or Matched	Our Part Number	UPC/EAN
Apex Matched Pair	T-E34L-JJ-MP	609722122986
Apex Matched Quad	T-E34L-JJ-MQ	609722122993
Apex Burned-In Matched Pair	T-E34L-JJ-MPB	609722123006
Apex Burned-In Matched Quad	T-E34L-JJ-MQB	609722123013
Single	T-E34L-JJ	609722122979

RoHS Compliant

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Specifications, Files, and Documents

Specification Sheet

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Product Measurements by Type (click to expand)

Product Measurements by Type
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)		≤ 800 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	4.6 in. × 3.3 in. × 1.6 in.
	Apex Burned-In Matched Quad version	4.6 in. × 3.3 in. × 3.3 in.
	Apex Matched Pair version	1.6 in. × 3.3 in. × 4.6 in.
	Apex Matched Quad version	3.3 in. × 3.3 in. × 4.6 in.
	Single version	1.6 in. × 1.6 in. × 4.5 in.
Weight (Packaging)	Apex Burned-In Matched Pair version	0.264 lbs.
	Apex Burned-In Matched Quad version	0.528 lbs.
	Apex Matched Pair version	0.264 lbs.
	Apex Matched Quad version	0.528 lbs.
	Single version	0.132 lbs.

Product Measurements by Item (click to expand)

Product Measurements by Item
T-E34L-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)	≤ 800 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-E34L-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)	≤ 800 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-E34L-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)	≤ 800 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-E34L-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)	≤ 800 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-E34L-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)	≤ 800 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

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Product Reviews

5.00 out of 5 based on 5 reviews

5 out of 5

Good price, fast shipping, and perfect product.

ampman - January 15th, 2020

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5 out of 5

great tubes sound is awsome will be buying a nother set soon.....

bull_dog998ahoo.com - October 8th, 2017

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5 out of 5

These have a distinct 6L6GC tone to them. They have more headroom, less break up, and less compression than an EL34. They are maybe a little like a 6CA7 too. They are another unique JJ product with it's own sound. Watch your plate currents and make sure the tubes do not make any weird changes in the first few hours of use. Like most JJs, they are a heavy duty looking valve with a thick glass envelope, and fairly well constructed plates. They also have a sound that is all its own, and there is little if anything classic about it. I know at least one person who is still consulting for JJ, although unofficially. As he puts it, "JJ marches to the beat of their own drummer". I will at least give JJ a nod of approval for not trying to sell their customers on the misrepresentation of "faithfully reproducing the famous _____ valve right down to the finest details". We can tell that is either not true, or they are not trying very hard, so if JJ wants to do something unique, why not? At least we won't be disappointed when it sounds like absolutely nothing else ever made, and it probably won't blow up either.

seb-ear-aaaaox.net - March 27th, 2015

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5 out of 5

Product as described, fast shipment!

Krunoslav Kovacic - December 1st, 2014

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5 out of 5

JJ EL34 gives my JetCity Picovalve the "Vox" chime I was looking for. Great tube at a nice price!

M.P. - July 25th, 2014

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Questions and Answers

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getting ready to install a quad of these in my 72 marshall superbass the plate voltage is around 526volts will thse tubes hold up?1 answers

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Asked by Anonymous on February 24th, 2016.

Answers (1)

JustinG

Staff Member

Top Contributor

February 24th, 2016

These tubes should work well in the Marshall Superbass though they will be running slightly hotter than rated. In instances such as this you may have shorter tube life but they should sound great.

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