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Vacuum Tube - 6550, JJ Electronics

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SKU:	T-6550-JJ
Item ID:	004596

Starting at: $36^.95

In stock

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Type

Power Burned In

Vacuum Tubes Apex Matched

The JJ Electronic 6550 is a robust tube built in the rugged fashion that JJ is famous for. At 35 Watts, these tubes have a warm round tone with a thick and defined low end. The JJ 6550 is an excellent choice for bass heads, tube organs, and Hi-Fi amplifiers.

Matched versions of this tube use Apex Matching

Choose burned-in tubes for maximum stability and performance.

Part Numbers
Single or Matched	Our Part Number	UPC/EAN
Apex Matched Pair	T-6550-JJ-MP	609722127516
Apex Matched Quad	T-6550-JJ-MQ	609722127523
Apex Burned-In Matched Pair	T-6550-JJ-MPB	841358101953
Apex Matched Sextet	T-6550-JJ-MS	609722127530
Apex Burned-In Matched Quad	T-6550-JJ-MQB	841358101960
Apex Burned-In Matched Sextet	T-6550-JJ-MSB	841358101977

RoHS Compliant

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Specifications, Files, and Documents

Specification Sheet

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Product Measurements (click to expand)

Product Measurements
Body Height		110 mm
Cathode Current (I_k)		≤ 175 mA
Filament Current (I_f)		1.6 A
Filament Voltage (U_f)		6.3 V
Grid 1 voltage (U_g1)		≥ -300 V, -14 V typical
Grid 2 current (I_g2)		≤ 12 mA
Grid 2 dissipation (W_g2)		6 W
Grid 2 voltage (U_g2)		≤ 400 V, 250 V typical
Grid capacitance (c_g1)		14 pF
Grid to Plate Capacitance (c_a/g)		0.85 pF
Internal Resistance (R_i)		16 kΩ
Item Diameter		43 mm
Item Height		125 mm
Plate Capacitance (c_a)		12 pF
Plate Current (I_a)		140 mA
Plate Dissipation (W_a)		≤ 35 W
Plate Voltage (U_a)		≤ 600 V, 250 V typical
Transconductance (S)		11.8 mA/V

Packaging Information
Packaging Dimensions	Apex Burned-In Matched Pair version	5 in. × 3.8 in. × 1.9 in.
	Apex Burned-In Matched Quad version	5 in. × 3.8 in. × 3.8 in.
	Apex Burned-In Matched Sextet version	5.6 in. × 5 in. × 3.8 in.
	Apex Matched Pair version	5 in. × 3.8 in. × 1.9 in.
	Apex Matched Quad version	5 in. × 3.8 in. × 3.8 in.
	Apex Matched Sextet version	5.6 in. × 5 in. × 3.8 in.
	Single version	1.9 in. × 1.9 in. × 5 in.
Weight (Packaging)	Apex Burned-In Matched Pair version	0.38 lbs.
	Apex Burned-In Matched Quad version	0.76 lbs.
	Apex Burned-In Matched Sextet version	1.14 lbs.
	Apex Matched Pair version	0.38 lbs.
	Apex Matched Quad version	0.76 lbs.
	Apex Matched Sextet version	1.14 lbs.
	Single version	0.19 lbs.

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Questions and Answers

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I recently bought a matched pair of T-6550 JJ tubes, need a third matched to that pair. How do I go about ordering it. 1 answers

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Asked by Anonymous on July 9th, 2018.

Answers (1)

BradWbr

Staff Member

July 10th, 2018

When ordering a single tube, you may make a note in the comments section asking us to match your tubes based on the Apex matching information on the tubes/tube boxes. Please include that information when making a note.

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Hello！My question is about delivery and payment method. The issue is that I am currently in China. Can I buy items with delivery to China?1 answers

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Asked by Anonymous on February 26th, 2019.

Answers (1)

BradWbr

Staff Member

February 28th, 2019

Yes, we deliver internationally.

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Substitute Products

The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.