JJ Electronic KT66 Power Tube Apex Matched Pair

The JJ Electronic KT66 is a sonically faithful reproduction of the original tubes with a robust construction encased in a thick glass envelope. The JJ KT66 delivers a powerful 25 Watts with plenty of headroom. This tube has a tone that is warm, thick, and straightforward. With a more balanced sound than the 6L6GC, the JJ KT66 is an excellent choice for a full bodied tone.

Product Measurements

Item Diameter: 52 mm
Item Height: 125 mm
Body Height: 110 mm
Filament Voltage (Uf): 6.3 V
Filament Current (If): 1.3 A
Plate Voltage (Ua): ≤ 550 V, 250 V typical
Plate Current (Ia): 85 mA
Grid 1 voltage (Ug1): ≥ -200 V, -15 V typical
Grid 2 voltage (Ug2): ≤ 550 V, 250 V typical
Grid 2 current (Ig2): ≤ 7 mA
Transconductance (S): 6 mA/V
Internal Resistance (Ri): 22.5 kΩ
Plate Dissipation (Wa): ≤ 25 W
Grid 2 dissipation (Wg2): 3.5 W
Cathode Current (Ik): ≤ 150 mA
Grid capacitance (cg1): 16 pF
Plate Capacitance (ca): 10 pF
Grid to Plate Capacitance (ca/g): 2.3 pF