Vacuum Tube - EL34, JJ Electronics
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.
RoHS Compliant
Accessory Items:
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 |
Body Height | 98 mm | ||
Cathode Current (Ik) | ≤ 150 mA | ||
Filament Current (If) | 1.5 A | ||
Filament Voltage (Uf) | 6.3 V | ||
Gain (μg2/g2) | 11 | ||
Grid 2 dissipation (Wg2) | 8 W | ||
Grid Current 2 (Ig2) | 14.9 mA | ||
Grid Voltage 1 (Ug1) | -10 V to -13.5 V typical | ||
Grid Voltage 2 (Ug2) | ≤ 450 V, 265 V typical | ||
Grid Voltage 3 (Ug3) | 0 V typical | ||
Grid capacitance (cg1) | 15.5 pF | ||
Grid to Plate Capacitance (ca/g) | 1.3 pF | ||
Heater to cathode resistance (Rk/f) | 20 kΩ | ||
Heater to cathode voltage (Uk/f) | ≤ 100 V | ||
Internal Resistance (Ri) | 15 kΩ | ||
Item Diameter | 33.3 mm | ||
Item Height | 112 mm | ||
Plate Capacitance (ca) | 10 pF | ||
Plate Current (Ia) | 100 mA | ||
Plate Dissipation (Wa) | ≤ 25 W | ||
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | ||
Transconductance (S) | 11 mA/V |
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 (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.5 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μg2/g2) | 11 | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid Current 2 (Ig2) | 14.9 mA | |
Grid Voltage 1 (Ug1) | -10 V to -13.5 V typical | |
Grid Voltage 2 (Ug2) | ≤ 450 V, 265 V typical | |
Grid Voltage 3 (Ug3) | 0 V typical | |
Grid capacitance (cg1) | 15.5 pF | |
Grid to Plate Capacitance (ca/g) | 1.3 pF | |
Heater to cathode resistance (Rk/f) | 20 kΩ | |
Heater to cathode voltage (Uk/f) | ≤ 100 V | |
Internal Resistance (Ri) | 15 kΩ | |
Item Diameter | 33.3 mm | |
Item Height | 112 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 100 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | |
Transconductance (S) | 11 mA/V | |
T-EL34-JJ-MQ - Apex Matched Quad version | Body Height | 98 mm |
Cathode Current (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.5 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μg2/g2) | 11 | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid Current 2 (Ig2) | 14.9 mA | |
Grid Voltage 1 (Ug1) | -10 V to -13.5 V typical | |
Grid Voltage 2 (Ug2) | ≤ 450 V, 265 V typical | |
Grid Voltage 3 (Ug3) | 0 V typical | |
Grid capacitance (cg1) | 15.5 pF | |
Grid to Plate Capacitance (ca/g) | 1.3 pF | |
Heater to cathode resistance (Rk/f) | 20 kΩ | |
Heater to cathode voltage (Uk/f) | ≤ 100 V | |
Internal Resistance (Ri) | 15 kΩ | |
Item Diameter | 33.3 mm | |
Item Height | 112 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 100 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | |
Transconductance (S) | 11 mA/V | |
T-EL34-JJ-MS - Apex Matched Sextet version | Body Height | 98 mm |
Cathode Current (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.5 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μg2/g2) | 11 | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid Current 2 (Ig2) | 14.9 mA | |
Grid Voltage 1 (Ug1) | -10 V to -13.5 V typical | |
Grid Voltage 2 (Ug2) | ≤ 450 V, 265 V typical | |
Grid Voltage 3 (Ug3) | 0 V typical | |
Grid capacitance (cg1) | 15.5 pF | |
Grid to Plate Capacitance (ca/g) | 1.3 pF | |
Heater to cathode resistance (Rk/f) | 20 kΩ | |
Heater to cathode voltage (Uk/f) | ≤ 100 V | |
Internal Resistance (Ri) | 15 kΩ | |
Item Diameter | 33.3 mm | |
Item Height | 112 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 100 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 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 (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.5 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μg2/g2) | 11 | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid Current 2 (Ig2) | 14.9 mA | |
Grid Voltage 1 (Ug1) | -10 V to -13.5 V typical | |
Grid Voltage 2 (Ug2) | ≤ 450 V, 265 V typical | |
Grid Voltage 3 (Ug3) | 0 V typical | |
Grid capacitance (cg1) | 15.5 pF | |
Grid to Plate Capacitance (ca/g) | 1.3 pF | |
Heater to cathode resistance (Rk/f) | 20 kΩ | |
Heater to cathode voltage (Uk/f) | ≤ 100 V | |
Internal Resistance (Ri) | 15 kΩ | |
Item Diameter | 33.3 mm | |
Item Height | 112 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 100 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 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 (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.5 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μg2/g2) | 11 | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid Current 2 (Ig2) | 14.9 mA | |
Grid Voltage 1 (Ug1) | -10 V to -13.5 V typical | |
Grid Voltage 2 (Ug2) | ≤ 450 V, 265 V typical | |
Grid Voltage 3 (Ug3) | 0 V typical | |
Grid capacitance (cg1) | 15.5 pF | |
Grid to Plate Capacitance (ca/g) | 1.3 pF | |
Heater to cathode resistance (Rk/f) | 20 kΩ | |
Heater to cathode voltage (Uk/f) | ≤ 100 V | |
Internal Resistance (Ri) | 15 kΩ | |
Item Diameter | 33.3 mm | |
Item Height | 112 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 100 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | |
Transconductance (S) | 11 mA/V | |
T-EL34-JJ - Single version | Body Height | 98 mm |
Cathode Current (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.5 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μg2/g2) | 11 | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid Current 2 (Ig2) | 14.9 mA | |
Grid Voltage 1 (Ug1) | -10 V to -13.5 V typical | |
Grid Voltage 2 (Ug2) | ≤ 450 V, 265 V typical | |
Grid Voltage 3 (Ug3) | 0 V typical | |
Grid capacitance (cg1) | 15.5 pF | |
Grid to Plate Capacitance (ca/g) | 1.3 pF | |
Heater to cathode resistance (Rk/f) | 20 kΩ | |
Heater to cathode voltage (Uk/f) | ≤ 100 V | |
Internal Resistance (Ri) | 15 kΩ | |
Item Diameter | 33.3 mm | |
Item Height | 112 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 100 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | |
Transconductance (S) | 11 mA/V |
![]() | All Models |
My Project Lists
Specifications, Files, and Documents
Questions? Contact us at [email protected], or give us a call at 480-296-0890
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
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!!!
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!!!
Seems to work well.
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 .
Fast shipping.
Have not used them yet, but JJ's always find a home, in my Musicman HD130-R
... 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.
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.
Purchased a matched quad set with the burned in option for my EVH 5153 EL34 Stealth
Very satisfied