Vacuum Tube - EL509, JJ Electronics

Vacuum Tube - EL509, JJ Electronics

JJ Electronics
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Starting at: $58.95
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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
SKU:
T-EL509-S-JJ-X
Item ID:
004853
Brand:
JJ Electronics, Apex Matched
Type:
RoHS Compliant
Part Numbers
Single or MatchedOur Part NumberUPC/EANJJ Electronics Part Number
Apex Matched PairT-EL509-S-JJ-MP609722123082
SingleT-EL509-S-JJ609722123075 EL509S
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 versionT-EL509-S-JJ-MP5.6 in. × 3.3 in. × 1.6 in.
Single versionT-EL509-S-JJ1.6 in. × 1.6 in. × 5.8 in.
Weight (Packaging)Apex Matched Pair versionT-EL509-S-JJ-MP0.3352 lbs.
Single versionT-EL509-S-JJ0.1676 lbs.
T-EL509-S-JJ-MP - Apex Matched Pair versionBody 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
T-EL509-S-JJ - Single versionBody 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

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet510.72 KB
Questions? Contact us at [email protected], or give us a call at 480-820-5411

Product Reviews

4.75 out of 5 based on 4 reviews
G. Beat - April 29th, 2023
4 out of 5

The EL-509 was used in Eastern Europe / Soviet TVs as a Horizontal Sweep Tube.
The tube pin circle diameter arc is 17.45 mm, which is same as North American
6MJ6 / 6LQ6 / 6JE6C Beam Power (Sweep) Tubes.
==
HOWEVER,
EL-509 Tubes uses larger pins, 1.27mm diameter, (Magnoval), B9D base (IEC 67-I-36a)
6MJ6 / 6LQ6 / 6JE6C Tubes use a smaller pin, 1.02mm diameter, (Novar), B9E base.

Alex G. - March 25th, 2023
5 out of 5

For us westerners who are not familiar with the el509, this is the octal base equivalent to the infamous 6kg6 and can be used in the same applications, but with the convenience of an octal base instead of a 9pin magnoval. The pinout is the same as 6l6, kt88, etc.

Robbert - August 20th, 2020
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.

Rabco - May 2nd, 2016
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!