Vacuum Tube - 6550, JJ Electronics

Vacuum Tube - 6550, JJ Electronics

JJ Electronics
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Starting at: $48.95

Product Options

  • Apex Matched Pair (T-6550-JJ-MP)
  • Apex Matched Quad (T-6550-JJ-MQ)
  • Apex Matched Sextet (T-6550-JJ-MS)
  • Apex Burned-In Matched Pair (T-6550-JJ-MPB)
  • Apex Burned-In Matched Quad (T-6550-JJ-MQB)
  • Apex Burned-In Matched Sextet (T-6550-JJ-MSB)
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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.

Apex Tube Matching
Matched versions of this tube use Apex Matching
Choose burned-in tubes for maximum stability and performance.
SKU:
T-6550-JJ
Item ID:
004596
Brand:
JJ Electronics, Apex Matched
RoHS Compliant
Part Numbers
Single or MatchedOur Part NumberUPC/EANJJ Electronics Part Number
Apex Matched PairT-6550-JJ-MP609722127516
Apex Matched QuadT-6550-JJ-MQ609722127523
Apex Burned-In Matched PairT-6550-JJ-MPB841358101953
Apex Matched SextetT-6550-JJ-MS609722127530
Apex Burned-In Matched QuadT-6550-JJ-MQB841358101960
Apex Burned-In Matched SextetT-6550-JJ-MSB841358101977
SingleT-6550-JJ609722127509 6550
Product Measurements by Type
Body Height110 mm
Cathode Current (Ik)≤ 175 mA
Filament Current (If)1.6 A
Filament Voltage (Uf)6.3 V
Grid 1 voltage (Ug1)≥ -300 V, -14 V typical
Grid 2 current (Ig2)≤ 12 mA
Grid 2 dissipation (Wg2)6 W
Grid 2 voltage (Ug2)≤ 400 V, 250 V typical
Grid capacitance (cg1)14 pF
Grid to Plate Capacitance (ca/g)0.85 pF
Internal Resistance (Ri)16 kΩ
Item Diameter43 mm
Item Height125 mm
Plate Capacitance (ca)12 pF
Plate Current (Ia)140 mA
Plate Dissipation (Wa)≤ 35 W
Plate Voltage (Ua)≤ 600 V, 250 V typical
Transconductance (S)11.8 mA/V
Packaging Information
Packaging DimensionsApex Burned-In Matched Pair versionT-6550-JJ-MPB5 in. × 3.8 in. × 1.9 in.
Apex Burned-In Matched Quad versionT-6550-JJ-MQB5 in. × 3.8 in. × 3.8 in.
Apex Burned-In Matched Sextet versionT-6550-JJ-MSB5.6 in. × 5 in. × 3.8 in.
Apex Matched Pair versionT-6550-JJ-MP5 in. × 3.8 in. × 1.9 in.
Apex Matched Quad versionT-6550-JJ-MQ5 in. × 3.8 in. × 3.8 in.
Apex Matched Sextet versionT-6550-JJ-MS5.6 in. × 5 in. × 3.8 in.
Single versionT-6550-JJ1.9 in. × 1.9 in. × 5 in.
Weight (Packaging)Apex Burned-In Matched Pair versionT-6550-JJ-MPB0.38 lbs.
Apex Burned-In Matched Quad versionT-6550-JJ-MQB0.76 lbs.
Apex Burned-In Matched Sextet versionT-6550-JJ-MSB1.14 lbs.
Apex Matched Pair versionT-6550-JJ-MP0.38 lbs.
Apex Matched Quad versionT-6550-JJ-MQ0.76 lbs.
Apex Matched Sextet versionT-6550-JJ-MS1.14 lbs.
Single versionT-6550-JJ0.19 lbs.
Product Measurements by Item
T-6550-JJ-MP - Apex Matched Pair versionBody Height110 mm
Cathode Current (Ik)≤ 175 mA
Filament Current (If)1.6 A
Filament Voltage (Uf)6.3 V
Grid 1 voltage (Ug1)≥ -300 V, -14 V typical
Grid 2 current (Ig2)≤ 12 mA
Grid 2 dissipation (Wg2)6 W
Grid 2 voltage (Ug2)≤ 400 V, 250 V typical
Grid capacitance (cg1)14 pF
Grid to Plate Capacitance (ca/g)0.85 pF
Internal Resistance (Ri)16 kΩ
Item Diameter43 mm
Item Height125 mm
Plate Capacitance (ca)12 pF
Plate Current (Ia)140 mA
Plate Dissipation (Wa)≤ 35 W
Plate Voltage (Ua)≤ 600 V, 250 V typical
Transconductance (S)11.8 mA/V
T-6550-JJ-MQ - Apex Matched Quad versionBody Height110 mm
Cathode Current (Ik)≤ 175 mA
Filament Current (If)1.6 A
Filament Voltage (Uf)6.3 V
Grid 1 voltage (Ug1)≥ -300 V, -14 V typical
Grid 2 current (Ig2)≤ 12 mA
Grid 2 dissipation (Wg2)6 W
Grid 2 voltage (Ug2)≤ 400 V, 250 V typical
Grid capacitance (cg1)14 pF
Grid to Plate Capacitance (ca/g)0.85 pF
Internal Resistance (Ri)16 kΩ
Item Diameter43 mm
Item Height125 mm
Plate Capacitance (ca)12 pF
Plate Current (Ia)140 mA
Plate Dissipation (Wa)≤ 35 W
Plate Voltage (Ua)≤ 600 V, 250 V typical
Transconductance (S)11.8 mA/V
T-6550-JJ-MS - Apex Matched Sextet versionBody Height110 mm
Cathode Current (Ik)≤ 175 mA
Filament Current (If)1.6 A
Filament Voltage (Uf)6.3 V
Grid 1 voltage (Ug1)≥ -300 V, -14 V typical
Grid 2 current (Ig2)≤ 12 mA
Grid 2 dissipation (Wg2)6 W
Grid 2 voltage (Ug2)≤ 400 V, 250 V typical
Grid capacitance (cg1)14 pF
Grid to Plate Capacitance (ca/g)0.85 pF
Internal Resistance (Ri)16 kΩ
Item Diameter43 mm
Item Height125 mm
Plate Capacitance (ca)12 pF
Plate Current (Ia)140 mA
Plate Dissipation (Wa)≤ 35 W
Plate Voltage (Ua)≤ 600 V, 250 V typical
Transconductance (S)11.8 mA/V
T-6550-JJ-MPB - Apex Burned-In Matched Pair versionBody Height110 mm
Cathode Current (Ik)≤ 175 mA
Filament Current (If)1.6 A
Filament Voltage (Uf)6.3 V
Grid 1 voltage (Ug1)≥ -300 V, -14 V typical
Grid 2 current (Ig2)≤ 12 mA
Grid 2 dissipation (Wg2)6 W
Grid 2 voltage (Ug2)≤ 400 V, 250 V typical
Grid capacitance (cg1)14 pF
Grid to Plate Capacitance (ca/g)0.85 pF
Internal Resistance (Ri)16 kΩ
Item Diameter43 mm
Item Height125 mm
Plate Capacitance (ca)12 pF
Plate Current (Ia)140 mA
Plate Dissipation (Wa)≤ 35 W
Plate Voltage (Ua)≤ 600 V, 250 V typical
Transconductance (S)11.8 mA/V
T-6550-JJ-MQB - Apex Burned-In Matched Quad versionBody Height110 mm
Cathode Current (Ik)≤ 175 mA
Filament Current (If)1.6 A
Filament Voltage (Uf)6.3 V
Grid 1 voltage (Ug1)≥ -300 V, -14 V typical
Grid 2 current (Ig2)≤ 12 mA
Grid 2 dissipation (Wg2)6 W
Grid 2 voltage (Ug2)≤ 400 V, 250 V typical
Grid capacitance (cg1)14 pF
Grid to Plate Capacitance (ca/g)0.85 pF
Internal Resistance (Ri)16 kΩ
Item Diameter43 mm
Item Height125 mm
Plate Capacitance (ca)12 pF
Plate Current (Ia)140 mA
Plate Dissipation (Wa)≤ 35 W
Plate Voltage (Ua)≤ 600 V, 250 V typical
Transconductance (S)11.8 mA/V
T-6550-JJ-MSB - Apex Burned-In Matched Sextet versionBody Height110 mm
Cathode Current (Ik)≤ 175 mA
Filament Current (If)1.6 A
Filament Voltage (Uf)6.3 V
Grid 1 voltage (Ug1)≥ -300 V, -14 V typical
Grid 2 current (Ig2)≤ 12 mA
Grid 2 dissipation (Wg2)6 W
Grid 2 voltage (Ug2)≤ 400 V, 250 V typical
Grid capacitance (cg1)14 pF
Grid to Plate Capacitance (ca/g)0.85 pF
Internal Resistance (Ri)16 kΩ
Item Diameter43 mm
Item Height125 mm
Plate Capacitance (ca)12 pF
Plate Current (Ia)140 mA
Plate Dissipation (Wa)≤ 35 W
Plate Voltage (Ua)≤ 600 V, 250 V typical
Transconductance (S)11.8 mA/V
T-6550-JJ - Single versionBody Height110 mm
Cathode Current (Ik)≤ 175 mA
Filament Current (If)1.6 A
Filament Voltage (Uf)6.3 V
Grid 1 voltage (Ug1)≥ -300 V, -14 V typical
Grid 2 current (Ig2)≤ 12 mA
Grid 2 dissipation (Wg2)6 W
Grid 2 voltage (Ug2)≤ 400 V, 250 V typical
Grid capacitance (cg1)14 pF
Grid to Plate Capacitance (ca/g)0.85 pF
Internal Resistance (Ri)16 kΩ
Item Diameter43 mm
Item Height125 mm
Plate Capacitance (ca)12 pF
Plate Current (Ia)140 mA
Plate Dissipation (Wa)≤ 35 W
Plate Voltage (Ua)≤ 600 V, 250 V typical
Transconductance (S)11.8 mA/V

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet518.94 KB

Questions and Answers

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Asked by Anonymous on December 5th, 2021.
BradWbr
December 6th, 2021
Staff Member
Yes, the bases are the bakelite/phenolic material as depicted and are not metal.

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