Vacuum Tube - EL509, JJ Electronics

JJ Electronics
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Vacuum Tube - EL509, JJ Electronics

Starting at: $38.95
Package of 2
Sold as a package of 2
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 max
Filament current (If)2 A
Filament voltage (Uf)6.2 V
Grid 2 dissipation (Wg2)40 W max
Grid current 2 (Ig2)10 mA
Grid to plate capacitance (ca/g1)3 pF
Grid voltage 1 (Ug1)-30 V typical
Grid voltage 2 (Ug2)160 V typical, 700 V max
Heater to cathode voltage (Uk/f)150 V max
Item Diameter38 mm
Item Height116 mm
Plate (anode) current (Ia)200 mA
Plate (anode) voltage (Ua)160 V typical, 700 V max
Saturation voltage (Usat)30 VAC
Packaging Information
Packaging DimensionsSingle version1.6 in. × 1.6 in. × 5.8 in.
Apex Matched Pair version5.6 in. × 3.3 in. × 1.6 in.
Weight (Packaging)Single version0.173 lbs.
Apex Matched Pair version0.346 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet (510.72 KB)Specification Sheet

Questions and Answers

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Asked by Anonymous on August 31st, 2018. 1 person subscribed to this question
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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.
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