Vacuum Tube - KT66, JJ Electronics
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.
Matched versions of this tube use Apex Matching
RoHS Compliant
Single or Matched | Our Part Number | UPC/EAN | JJ Electronics Part Number |
---|---|---|---|
Apex Matched Pair | T-KT66-JJ-MP | 609722123136 | |
Apex Matched Quad | T-KT66-JJ-MQ | 609722123143 | |
Single | T-KT66-JJ | 609722123129 | KT66 |
Body Height | 110 mm | ||
Cathode Current (Ik) | ≤ 150 mA | ||
Filament Current (If) | 1.3 A | ||
Filament Voltage (Uf) | 6.3 V | ||
Grid 1 voltage (Ug1) | ≥ -200 V, -15 V typical | ||
Grid 2 current (Ig2) | ≤ 7 mA | ||
Grid 2 dissipation (Wg2) | 3.5 W | ||
Grid 2 voltage (Ug2) | ≤ 550 V, 250 V typical | ||
Grid capacitance (cg1) | 16 pF | ||
Grid to Plate Capacitance (ca/g) | 2.3 pF | ||
Internal Resistance (Ri) | 22.5 kΩ | ||
Item Diameter | 52 mm | ||
Item Height | 125 mm | ||
Plate Capacitance (ca) | 10 pF | ||
Plate Current (Ia) | 85 mA | ||
Plate Dissipation (Wa) | ≤ 25 W | ||
Plate Voltage (Ua) | ≤ 550 V, 250 V typical | ||
Transconductance (S) | 6 mA/V |
Packaging Dimensions | Apex Matched Pair version | T-KT66-JJ-MP | 5.3 in. × 4.5 in. × 2.3 in. |
Apex Matched Quad version | T-KT66-JJ-MQ | 5.3 in. × 4.5 in. × 4.5 in. | |
Single version | T-KT66-JJ | 2.3 in. × 2.3 in. × 5.3 in. | |
Weight (Packaging) | Apex Matched Pair version | T-KT66-JJ-MP | 0.5512 lbs. |
Apex Matched Quad version | T-KT66-JJ-MQ | 1.1024 lbs. | |
Single version | T-KT66-JJ | 0.2756 lbs. |
T-KT66-JJ-MP - Apex Matched Pair version | Body Height | 110 mm |
Cathode Current (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.3 A | |
Filament Voltage (Uf) | 6.3 V | |
Grid 1 voltage (Ug1) | ≥ -200 V, -15 V typical | |
Grid 2 current (Ig2) | ≤ 7 mA | |
Grid 2 dissipation (Wg2) | 3.5 W | |
Grid 2 voltage (Ug2) | ≤ 550 V, 250 V typical | |
Grid capacitance (cg1) | 16 pF | |
Grid to Plate Capacitance (ca/g) | 2.3 pF | |
Internal Resistance (Ri) | 22.5 kΩ | |
Item Diameter | 52 mm | |
Item Height | 125 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 85 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 550 V, 250 V typical | |
Transconductance (S) | 6 mA/V | |
T-KT66-JJ-MQ - Apex Matched Quad version | Body Height | 110 mm |
Cathode Current (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.3 A | |
Filament Voltage (Uf) | 6.3 V | |
Grid 1 voltage (Ug1) | ≥ -200 V, -15 V typical | |
Grid 2 current (Ig2) | ≤ 7 mA | |
Grid 2 dissipation (Wg2) | 3.5 W | |
Grid 2 voltage (Ug2) | ≤ 550 V, 250 V typical | |
Grid capacitance (cg1) | 16 pF | |
Grid to Plate Capacitance (ca/g) | 2.3 pF | |
Internal Resistance (Ri) | 22.5 kΩ | |
Item Diameter | 52 mm | |
Item Height | 125 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 85 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 550 V, 250 V typical | |
Transconductance (S) | 6 mA/V | |
T-KT66-JJ - Single version | Body Height | 110 mm |
Cathode Current (Ik) | ≤ 150 mA | |
Filament Current (If) | 1.3 A | |
Filament Voltage (Uf) | 6.3 V | |
Grid 1 voltage (Ug1) | ≥ -200 V, -15 V typical | |
Grid 2 current (Ig2) | ≤ 7 mA | |
Grid 2 dissipation (Wg2) | 3.5 W | |
Grid 2 voltage (Ug2) | ≤ 550 V, 250 V typical | |
Grid capacitance (cg1) | 16 pF | |
Grid to Plate Capacitance (ca/g) | 2.3 pF | |
Internal Resistance (Ri) | 22.5 kΩ | |
Item Diameter | 52 mm | |
Item Height | 125 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 85 mA | |
Plate Dissipation (Wa) | ≤ 25 W | |
Plate Voltage (Ua) | ≤ 550 V, 250 V typical | |
Transconductance (S) | 6 mA/V |
Specification Sheet | All Models |
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