Vacuum Tube - EL509, JJ Electronics

JJ Electronics
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Vacuum Tube - EL509, JJ Electronics

Starting at: $38.95
In stock

The JJ Electronic EL509S is an eight pin octal based version of the EL509 / EL519. This modified version does not have the top plate cap which is instead wired to a pin on the octal base. This tube is rated for 700V and 42 Watts plate dissipation. The JJ EL509 is popularly used in output transformerless OTL amplifiers.

Apex Tube Matching
Matched versions of this tube use Apex Matching
RoHS Compliant
Item ID:
JJ Electronics, Apex Matched
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Apex Matched PairT-EL509-S-JJ-MP609722123082
Product Measurements
Body Height105 mm
Cathode Current (Ik)≤ 500 mA
Filament Current (If)2 A
Filament Voltage (Uf)6.2 V
Grid 2 dissipation (Wg2)≤ 40 W
Grid Current 2 (Ig2)10 mA
Grid Voltage 1 (Ug1)-30 V typical
Grid Voltage 2 (Ug2)≤ 700 V, 160 V typical
Grid to Plate Capacitance (ca/g)3 pF
Heater to cathode voltage (Uk/f)≤ 150 V
Item Diameter38 mm
Item Height116 mm
Plate Current (Ia)200 mA
Plate Voltage (Ua)≤ 700 V, 160 V typical
Saturation voltage (Usat)30 VAC
Packaging Information
Packaging DimensionsApex Matched Pair version5.6 in. × 3.3 in. × 1.6 in.
Single version1.6 in. × 1.6 in. × 5.8 in.
Weight (Packaging)Apex Matched Pair version0.346 lbs.
Single version0.173 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet510.72 KB

Questions and Answers

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Asked by Anonymous on August 31st, 2018.
August 31st, 2018
Staff Member
We are always happy to submit a quote to management. You will want to call us here at 480-296-0890.
Asked by Anonymous on December 8th, 2019.
December 11th, 2019
Staff Member
Please contact us direct for sets other than pairs.

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