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Vacuum Tube - EL509, JJ Electronics

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SKU:	T-EL509-S-JJ-X
Item ID:	004853

Starting at: $38^.95

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Type

Power

Vacuum Tubes Apex Matched

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.

Matched versions of this tube use Apex Matching

Part Numbers
Single or Matched	Our Part Number	UPC/EAN	JJ Electronics Part Number
Apex Matched Pair	T-EL509-S-JJ-MP	609722123082
Single	T-EL509-S-JJ	609722123075	EL509S

RoHS Compliant

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Specifications, Files, and Documents

Specification Sheet

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Product Measurements by Type (click to expand)

Product Measurements by Type
Body Height		105 mm
Cathode Current (I_k)		≤ 500 mA
Filament Current (I_f)		2 A
Filament Voltage (U_f)		6.2 V
Grid 2 dissipation (W_g2)		≤ 40 W
Grid Current 2 (I_g2)		10 mA
Grid Voltage 1 (U_g1)		-30 V typical
Grid Voltage 2 (U_g2)		≤ 700 V, 160 V typical
Grid to Plate Capacitance (c_a/g)		3 pF
Heater to cathode voltage (U_k/f)		≤ 150 V
Item Diameter		38 mm
Item Height		116 mm
Plate Current (I_a)		200 mA
Plate Voltage (U_a)		≤ 700 V, 160 V typical
Saturation voltage (U_sat)		30 VAC

Packaging Information
Packaging Dimensions	Apex Matched Pair version	5.6 in. × 3.3 in. × 1.6 in.
Packaging Dimensions	Single version	1.6 in. × 1.6 in. × 5.8 in.
Weight (Packaging)	Apex Matched Pair version	0.346 lbs.
Weight (Packaging)	Single version	0.173 lbs.

Product Measurements by Item (click to expand)

Product Measurements by Item
T-EL509-S-JJ-MP - Apex Matched Pair version	Body Height	105 mm
	Cathode Current (I_k)	≤ 500 mA
	Filament Current (I_f)	2 A
	Filament Voltage (U_f)	6.2 V
	Grid 2 dissipation (W_g2)	≤ 40 W
	Grid Current 2 (I_g2)	10 mA
	Grid Voltage 1 (U_g1)	-30 V typical
	Grid Voltage 2 (U_g2)	≤ 700 V, 160 V typical
	Grid to Plate Capacitance (c_a/g)	3 pF
	Heater to cathode voltage (U_k/f)	≤ 150 V
	Item Diameter	38 mm
	Item Height	116 mm
	Plate Current (I_a)	200 mA
	Plate Voltage (U_a)	≤ 700 V, 160 V typical
	Saturation voltage (U_sat)	30 VAC
T-EL509-S-JJ - Single version	Body Height	105 mm
	Cathode Current (I_k)	≤ 500 mA
	Filament Current (I_f)	2 A
	Filament Voltage (U_f)	6.2 V
	Grid 2 dissipation (W_g2)	≤ 40 W
	Grid Current 2 (I_g2)	10 mA
	Grid Voltage 1 (U_g1)	-30 V typical
	Grid Voltage 2 (U_g2)	≤ 700 V, 160 V typical
	Grid to Plate Capacitance (c_a/g)	3 pF
	Heater to cathode voltage (U_k/f)	≤ 150 V
	Item Diameter	38 mm
	Item Height	116 mm
	Plate Current (I_a)	200 mA
	Plate Voltage (U_a)	≤ 700 V, 160 V typical
	Saturation voltage (U_sat)	30 VAC

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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.

Robbert - August 20th, 2020

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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!

Rabco - May 2nd, 2016