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Vacuum Tube - 6550, JJ Electronics

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SKU:	T-6550-JJ
Item ID:	004596

Starting at: $37^.95

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Vacuum Tubes Apex Matched

Type

Power Burned In

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
Single	T-6550-JJ	609722127509

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		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.

Product Measurements by Item (click to expand)

Product Measurements by Item
T-6550-JJ-MP - Apex Matched Pair version	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
T-6550-JJ-MQ - Apex Matched Quad version	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
T-6550-JJ-MS - Apex Matched Sextet version	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
T-6550-JJ-MPB - Apex Burned-In Matched Pair version	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
T-6550-JJ-MQB - Apex Burned-In Matched Quad version	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
T-6550-JJ-MSB - Apex Burned-In Matched Sextet version	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
T-6550-JJ - Single version	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

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