KT88, Genalex Gold Lion, Matched Vacuum Tube, Matched Pair

KT88 power tube reissue of Genalex Gold Lion. Made in Russia.

In 1957 Marconi-Osram Valve Co. (Genalex) introduced the "King of Power Tubes", the legendary Gold Lion KT88. This tube became the heart and soul of such classics as the Dynaco Mark III, McIntosh MC275, and Marshall Major. Unfortunately, Genalex ceased tube production in the early 1980s and the Genalex Gold Lion KT88 has become very expensive and hard to find.

After extensive research and engineering, New Sensor Corp. has reissued the famed Genalex Gold Lion KT88. This tube has been recreated down to the finest detail with gold plated grid wire, carbonized screen grids, and a tri-alloy clad plate structure for exceptional performance and sound quality.

Product Measurements

Item Height: 125 mm
Body Height: 110 mm
Heater Voltage: 6.3 V
Heater Current: 1.6 A
Plate Voltage (Ua): ≤ 600 V, 250 V typical
Grid 2 Voltage: ≤ 600 V, 250 V typical
Plate Dissipation (Wa): 35 W
Grid 2 Dissipation: 6 W
Cathode Current (Ik): 175 mA
Heater-Cathode Voltage (Uh/k): 150 V
Grid Circuit Resistance (Rg), Cathode Bias: 220 kΩ
Grid Circuit Resistance (Rg), Fixed Bias: 100 kΩ
Capacitance, grid to plate: 1.2 pF
Capacitance, input: 16 pF
Capacitance, output: 12 pF
Gain (μ): 8
Plate Resistance (Ra): 12 kΩ
Transconductance (S): 11 mA/V
Item Diameter: 52 mm