Vacuum Tube - EL34 II, JJ Electronics, Pentode

JJ Electronics
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Vacuum Tube - EL34 II, JJ Electronics, Pentode

Starting at: $25.50
In Stock

The JJ Electronic EL34 II is a different construction of the classic EL34 tube that offers a different tonal palette than the original. This tube has a more compact plate structure than standard EL34’s. The JJ EL34 II has an increased low to low-mid end with plenty of headroom to spare. This tube has a thick and tight bass response. The mids are balanced and harmonically rich with pleasantly smooth highs. The JJ EL34 II is stronger than the original but not harsh sounding in any way. When overdriven, this tube has a warm and dynamic distortion that rivals many vintage tubes.

Apex Tube Matching
Matched versions of this tube use Apex Matching
SKU:
T-EL34II-JJ
Item ID:
039636
Brand:
JJ Electronics, Apex Matched
RoHS Compliant
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
SingleT-EL34II-JJ841358101649
Apex Matched PairT-EL34II-JJ-MP841358101663
Apex Matched QuadT-EL34II-JJ-MQ841358101670
Body Height98 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 Capacitance (cg1)15.5 pF
Grid Current 2 (Ig2)14.9 mA
Grid Voltage 1 (Ug1)-13.5 V typical
Grid Voltage 2 (Ug2)≤ 450 V, 265 V typical
Grid Voltage 3 (Ug3)0 V typical
Grid to Plate Capacitance (ca/g)1.3 pF
Heater to Cathode Voltage (Uk/f)≤ 100 V
Heater to cathode resistance (Rk/f)20 kΩ
Internal Resistance (Ri)15 kΩ
Item Diameter33.3 mm
Item Height112 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 Information
Packaging DimensionsApex Matched Pair versionT-EL34II-JJ-MP4.6 in. × 3.21 in. × 1.65 in.
Apex Matched Quad versionT-EL34II-JJ-MQ4.6 in. × 3.2 in. × 3.21 in.
Single versionT-EL34II-JJ1.59 in. × 1.59 in. × 4.61 in.
Weight (Packaging)Apex Matched Pair versionT-EL34II-JJ-MP0.2514 lbs.
Apex Matched Quad versionT-EL34II-JJ-MQ0.5028 lbs.
Single versionT-EL34II-JJ0.1257 lbs.
T-EL34II-JJ-MP - Apex Matched Pair versionBody Height98 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 Capacitance (cg1)15.5 pF
Grid Current 2 (Ig2)14.9 mA
Grid Voltage 1 (Ug1)-13.5 V typical
Grid Voltage 2 (Ug2)≤ 450 V, 265 V typical
Grid Voltage 3 (Ug3)0 V typical
Grid to Plate Capacitance (ca/g)1.3 pF
Heater to Cathode Voltage (Uk/f)≤ 100 V
Heater to cathode resistance (Rk/f)20 kΩ
Internal Resistance (Ri)15 kΩ
Item Diameter33.3 mm
Item Height112 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-EL34II-JJ-MQ - Apex Matched Quad versionBody Height98 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 Capacitance (cg1)15.5 pF
Grid Current 2 (Ig2)14.9 mA
Grid Voltage 1 (Ug1)-13.5 V typical
Grid Voltage 2 (Ug2)≤ 450 V, 265 V typical
Grid Voltage 3 (Ug3)0 V typical
Grid to Plate Capacitance (ca/g)1.3 pF
Heater to Cathode Voltage (Uk/f)≤ 100 V
Heater to cathode resistance (Rk/f)20 kΩ
Internal Resistance (Ri)15 kΩ
Item Diameter33.3 mm
Item Height112 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-EL34II-JJ - Single versionBody Height98 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 Capacitance (cg1)15.5 pF
Grid Current 2 (Ig2)14.9 mA
Grid Voltage 1 (Ug1)-13.5 V typical
Grid Voltage 2 (Ug2)≤ 450 V, 265 V typical
Grid Voltage 3 (Ug3)0 V typical
Grid to Plate Capacitance (ca/g)1.3 pF
Heater to Cathode Voltage (Uk/f)≤ 100 V
Heater to cathode resistance (Rk/f)20 kΩ
Internal Resistance (Ri)15 kΩ
Item Diameter33.3 mm
Item Height112 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

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet495.76 KB
Questions? Contact us at [email protected], or give us a call at 480-296-0890

Product Reviews

3.00 out of 5 based on 2 reviews
Kenneth Garvin - September 13th, 2022
5 out of 5

These new JJ EL34 II are just the ticket for an amp that’s too bright. My MusicMan is a lot warmer and less shrill now. Thanks JJ. Keep making good stuff.

Mark DeVault - June 19th, 2019
1 out of 5

Ordered an Apex matched quad, They biased at 31, 31, 35, 36 I called and got the ok to ship back which cost me $20. I get a text back from Westley stating they were perfectly matched and that they were sending them back which cost me another $10. Not too happy with the service.