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Vacuum Tube - E34L, JJ Electronics, Blue Glass
Blue glass envelope.
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
RoHS Compliant
| Single or Matched | Our Part Number | UPC/EAN |
|---|---|---|
| Apex Matched Pair | T-E34L-BL-JJ-MP | 609722122955 |
| Apex Matched Quad | T-E34L-BL-JJ-MQ | 609722122962 |
| Single | T-E34L-BLUE-JJ | 609722122948 |
| 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 Matched Pair version | 4.6 in. × 3.3 in. × 3.3 in. |
| Apex Matched Quad version | 4.6 in. × 3.3 in. × 1.6 in. | |
| Single version | 1.6 in. × 1.6 in. × 4.6 in. | |
| Weight (Packaging) | Apex Matched Pair version | 0.264 lbs. |
| Apex Matched Quad version | 0.528 lbs. | |
| Single version | 0.132 lbs. |
 Specification Sheet | All Models |
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Questions and Answers
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1 answers
I bought a matched pair of these tubes two years ago from your company with 31ma marked on the tube box. I did not use these tubes. now I want to buy another matched pair to achieve a matched quad for my push-pull amplifier. Is it possible?
Asked by Anonymous on November 18th, 2015.
November 18th, 2015
Staff MemberTop Contributor
All JJ tubes are now matched using our new Apex Matching System and as a result we would not be able to match numbers from our previous matching system.
1 answers
I have two Marshall TSL 100's. Can you recommend which matched EL34 quad set to purchase to get the best sustain, EVH "brown sound", general "heavy metal" type tones usually used in modern rock.
Asked by Anonymous on August 11th, 2017.
The E34L will have more headroom compared to EL34's. You can request "low numbers" when ordering to allow for quicker breakup.
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.
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