Vacuum Tube - 6550C, Svetlana

Vacuum Tube - 6550C, Svetlana

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Starting at: $37.50
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The Svetlana 6550C is an excellent choice for users looking to upgrade their current 6550 tubes. This Russian tube features a robust plate design offering a high level of performance. The 6550C offers the classic big and open sounds that made the 6550 famous. The Svetlana 6550C works in any 6550 position.

“Svetlana tubes are quite simply the absolute best. We design and manufacture our tubes, engineered for demanding high fidelity, reliability and overall warmth. Be sure to insist on genuine Svetlana vacuum tubes the next time you retube -- you'll be getting the absolute best possible tubes for any demanding application.”
-Svetlana

SKU:
T-6550C-SV-X
Item ID:
044396
Brand:
Svetlana
Type:
Part Numbers
Single or MatchedOur Part Number
SingleT-6550C-SV
Matched PairT-6550C-SV-MP
Matched QuadT-6550C-SV-MQ
Product Measurements by Type
Cathode to Heater Max.-300 V / +200 V
Class A Typical Grid 1 Voltage-22 V
Class A Typical Grid 2 Voltage225 V
Class A Typical Idle Grid 2 Current4 mA
Class A Typical Idle Plate Current87 mA
Class A Typical Load Resistance3000 Ω
Class A Typical Max. Signal Grid 2 Current18 mA
Class A Typical Max. Signal Plate Current105 mA
Class A Typical Peak AF Grid 1 Voltage22 V
Class A Typical Plate Voltage400 V
Class A Typical Signal Output at 5% Distortion12 W
Class A Typical Transconductance9500 µS
CoolingConvection
Diameter46 mm
Envelope Temp. Max.250 °C
Grid 1 to Cathode and Grid 3, Grid 2, Base, and Heater18.5 pF
Grid 1 to Plate Max.1.1 pF
Heater Current Nom.1.6 A
Heater Voltage Max.6.9 V
Heater Voltage Min.5.7 V
Heater Voltage Nom.6.3 V
Height116 mm
Max. DC Cathode Current175 mA
Max. Grid 1 Voltage-300 V
Max. Grid 2Voltage:400 V
Max. Grid 2 Dissipation6 W
Max. Plate Dissipation35 W
Max. Plate Voltage680 V
Plate to Cathode and Grid 3, Grid 2, Base, and Heater12.5 pF
Seated Height106 mm
Weight Approx.100 g
Packaging Information
Packaging DimensionsMatched Pair versionT-6550C-SV-MP5.5 in. × 4 in. × 2.2 in.
Matched Quad versionT-6550C-SV-MQ5.5 in. × 8 in. × 2.2 in.
Single versionT-6550C-SV5.5 in. × 2.2 in. × 2.2 in.
Weight (Packaging)Single versionT-6550C-SV0.25 lbs.
Product Measurements by Item
T-6550C-SV - Single versionCathode to Heater Max.-300 V / +200 V
Class A Typical Grid 1 Voltage-22 V
Class A Typical Grid 2 Voltage225 V
Class A Typical Idle Grid 2 Current4 mA
Class A Typical Idle Plate Current87 mA
Class A Typical Load Resistance3000 Ω
Class A Typical Max. Signal Grid 2 Current18 mA
Class A Typical Max. Signal Plate Current105 mA
Class A Typical Peak AF Grid 1 Voltage22 V
Class A Typical Plate Voltage400 V
Class A Typical Signal Output at 5% Distortion12 W
Class A Typical Transconductance9500 µS
CoolingConvection
Diameter46 mm
Envelope Temp. Max.250 °C
Grid 1 to Cathode and Grid 3, Grid 2, Base, and Heater18.5 pF
Grid 1 to Plate Max.1.1 pF
Heater Current Nom.1.6 A
Heater Voltage Max.6.9 V
Heater Voltage Min.5.7 V
Heater Voltage Nom.6.3 V
Height116 mm
Max. DC Cathode Current175 mA
Max. Grid 1 Voltage-300 V
Max. Grid 2 Dissipation6 W
Max. Grid 2Voltage:400 V
Max. Plate Dissipation35 W
Max. Plate Voltage680 V
Plate to Cathode and Grid 3, Grid 2, Base, and Heater12.5 pF
Seated Height106 mm
Weight Approx.100 g
T-6550C-SV-MP - Matched Pair versionCathode to Heater Max.-300 V / +200 V
Class A Typical Grid 1 Voltage-22 V
Class A Typical Grid 2 Voltage225 V
Class A Typical Idle Grid 2 Current4 mA
Class A Typical Idle Plate Current87 mA
Class A Typical Load Resistance3000 Ω
Class A Typical Max. Signal Grid 2 Current18 mA
Class A Typical Max. Signal Plate Current105 mA
Class A Typical Peak AF Grid 1 Voltage22 V
Class A Typical Plate Voltage400 V
Class A Typical Signal Output at 5% Distortion12 W
Class A Typical Transconductance9500 µS
CoolingConvection
Diameter46 mm
Envelope Temp. Max.250 °C
Grid 1 to Cathode and Grid 3, Grid 2, Base, and Heater18.5 pF
Grid 1 to Plate Max.1.1 pF
Heater Current Nom.1.6 A
Heater Voltage Max.6.9 V
Heater Voltage Min.5.7 V
Heater Voltage Nom.6.3 V
Height116 mm
Max. DC Cathode Current175 mA
Max. Grid 1 Voltage-300 V
Max. Grid 2 Dissipation6 W
Max. Grid 2Voltage:400 V
Max. Plate Dissipation35 W
Max. Plate Voltage680 V
Plate to Cathode and Grid 3, Grid 2, Base, and Heater12.5 pF
Seated Height106 mm
Weight Approx.100 g
T-6550C-SV-MQ - Matched Quad versionCathode to Heater Max.-300 V / +200 V
Class A Typical Grid 1 Voltage-22 V
Class A Typical Grid 2 Voltage225 V
Class A Typical Idle Grid 2 Current4 mA
Class A Typical Idle Plate Current87 mA
Class A Typical Load Resistance3000 Ω
Class A Typical Max. Signal Grid 2 Current18 mA
Class A Typical Max. Signal Plate Current105 mA
Class A Typical Peak AF Grid 1 Voltage22 V
Class A Typical Plate Voltage400 V
Class A Typical Signal Output at 5% Distortion12 W
Class A Typical Transconductance9500 µS
CoolingConvection
Diameter46 mm
Envelope Temp. Max.250 °C
Grid 1 to Cathode and Grid 3, Grid 2, Base, and Heater18.5 pF
Grid 1 to Plate Max.1.1 pF
Heater Current Nom.1.6 A
Heater Voltage Max.6.9 V
Heater Voltage Min.5.7 V
Heater Voltage Nom.6.3 V
Height116 mm
Max. DC Cathode Current175 mA
Max. Grid 1 Voltage-300 V
Max. Grid 2 Dissipation6 W
Max. Grid 2Voltage:400 V
Max. Plate Dissipation35 W
Max. Plate Voltage680 V
Plate to Cathode and Grid 3, Grid 2, Base, and Heater12.5 pF
Seated Height106 mm
Weight Approx.100 g

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Specifications, Files, and Documents

PDF: Datasheet for Single (T-6550C-SV)Datasheet for Single926.9 KB

Questions and Answers

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Asked by Anonymous on July 5th, 2021.
BradWbr
July 6th, 2021
Staff Member
These are current production tubes.

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