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Vacuum Tube - EL509, JJ Electronics

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Item ID: 004853
Starting at: $38.95
In Stock
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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
Part Numbers
Single or MatchedOur Part NumberUPC/EANJJ Electronics Part Number
Apex Matched PairT-EL509-S-JJ-MP609722123082
SingleT-EL509-S-JJ609722123075 EL509S

RoHS Compliant

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Specifications, Files, and Documents

Product Reviews

5.00 out of 5 based on 2 reviews
5 out of 5

Use these tubes in my The Beast Jr from Transcendent. they work great got the APEX matched, adjusting bias was a breeze and stayed stable after that.
Had an issue with a set, send the tubes back,they were verified and got fast a new set send back to me excellent service. There for i buy all my tubes here.

- August 20th, 2020
5 out of 5

My Transcendent Mini Beast amplifier uses 6 of these power tubes. It's OTL design does not require bias adjustment and tube matching, so when one of the six power tubes failed after a year, I purchased a single to replace it. So far so good. Hopefully it will last longer than the one it replaced. Antique Electronic Supply packed the tube for shipment perfectly. My order was processed and shipped same day. The tube is priced competitively. It's good to have my tunes back!

- May 2nd, 2016

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