TUNG-SOL KT120 Power Tube High Quality (Matched Pair)

TUNG-SOL KT120 Power Tube High Quality (Matched Pair)
The Tung-Sol KT120 has a 60W dissipation tray, making it the most powerful tube in the 6550/KT88/KT90 family. A pair of these tubes in push-pull configuration can deliver between 150 and 200W.
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Shipping date: 19-09-2019.

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TUNG-SOL KT120

Power tubes high quality (Matched pair)

TUNG-SOL KT120 Tubes de Puissance Haute Qualité (Paire Appairée)

The Tung-Sol KT120 has a 60W dissipation tray, making it the most powerful tube in the 6550/KT88/KT90 family. A pair of these tubes in push-pull configuration can deliver between 150 and 200W. When used with existing 6550 / KT88 / KT90 circuit parameters, the KT120 becomes overload proof, delivering peak power with extreme reliability and very long life. Moreover, by taking advantage of the ability of these tubes to handle high currents, it is quite possible to design a unique, powerful and stable amplifier.

The Sung-Tol brand has long been known for the high quality of its tubes but also for their incredible timbre. Manufacturing quality that lasts, even on these new models. Thus, Tung-Sol tubes reflect the best of the brand's vintage manufacturing, with unmatched sound and reliability.

These tubes are delivered in pairs and are matched by the brand in order to obtain the closest values and therefore the best possible operation. Ideal for perfect assembly.

Tung-Sol KT120 Tubes de puissance haute qualité (paire Appairée)

Technical characteristics

Direct interelectrode capacitances (Without shield)
Input29pf
Output10pf
Grid 1 to plate1.8pf
Heater characteristics and ratings
Average characteristics6.3V 1.7-1.95A
Maximum voltage heater of negative cathode300V
Maximum voltage heater of positive cathode200V
Maximum ratings
Plate DC VoltageTetrode : 850V
Triode 650V
Grid 2 DC VoltagePentode connection : 650V
Triode and ultra-linear connection : 600V
Grid 1 DC Voltage-200V
Plate dissipation60W
Grid 2 dissipation8W
Cathode currentPentode connection : 250mA
Triode and ultra-linear connection : 30mA
Grid 1 circuit resistanceFixed Bias : 51000 Ohm
Self Bias : 240000 Ohm
Bulb temperature250°C
Average characteristics
Plate voltage400V
Grid 2 voltage225V
Grid 1 voltage-14V
Plate current (range)165 - 165mA
Grid 2 currentNot more than 14mA
TransconductanceNot less than 12.2mA/V
Plate resistanceApprox 3000 Ohm
Max signal power outputNot less than 20W
Total Harmonic DistorsionNot more than 14%
Cathode to heater leakage (with +-300V heater to cathode difference)Not more than 30uA
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TUNG-SOL KT120 Power Tube High Quality (Matched Pair)
The Tung-Sol KT120 has a 60W dissipation tray, making it the most powerful tube in the 6550/KT88/KT90 family. A pair of these tubes in push-pull...

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