Vacuum Tube - KT66, Genalex Gold Lion
Super Premium power beam tetrode & exact copy of the original clear glass KT66, used in the early Marshall amps which created Eric Clapton’s "Bluesbreaker" Tone.” Full sound with improved bass response and shimmering top-end.
- Originally a British equivalent to 6L6 and a mainstay of the British hi-fi industry
- Used in 50s - 60s hi-fi favorites such as the Heath W-5M and many Leak amplifiers
Single or Matched | Our Part Number | UPC/EAN |
---|---|---|
Single | T-KT66-GEN | 841358102523 |
Matched Pair | T-KT66-GEN-MP | 841358102530 |
Matched Quad | T-KT66-GEN-MQ | 841358102547 |
Body Height | 111 - 121 mm | ||
Capacitance, Grid 1 to All | 16 pF | ||
Capacitance, Plate to All | 11.5 pF | ||
Capacitance, Plate to Grid 1 | 1.1 pF | ||
Grid 2 Voltage | ≤ 400 V | ||
Grid Power Dissipation | 3.5 W | ||
Heater Current | 1.27 A | ||
Heater Voltage | 6.3 V | ||
Item Diameter | 53 mm | ||
Item Height | 125 - 135 mm | ||
Plate Dissipation (Wa) | 25 W | ||
Plate Resistance (Ra) | 22.5 kΩ | ||
Plate Voltage (Ua) | ≤ 500 V | ||
Transconductance (S) | 6.3 mA/V |
Packaging Dimensions | Matched Pair version | T-KT66-GEN-MP | 5.53 in. × 4.41 in. × 2.26 in. |
Matched Quad version | T-KT66-GEN-MQ | 5.53 in. × 4.41 in. × 4.48 in. | |
Single version | T-KT66-GEN | 5.5 in. × 2.25 in. × 2.25 in. | |
Weight (Packaging) | Matched Pair version | T-KT66-GEN-MP | 0.43 lbs. |
Matched Quad version | T-KT66-GEN-MQ | 0.86 lbs. | |
Single version | T-KT66-GEN | 0.1808 lbs. |
T-KT66-GEN-MP - Matched Pair version | Body Height | 111 - 121 mm |
Capacitance, Grid 1 to All | 16 pF | |
Capacitance, Plate to All | 11.5 pF | |
Capacitance, Plate to Grid 1 | 1.1 pF | |
Grid 2 Voltage | ≤ 400 V | |
Grid Power Dissipation | 3.5 W | |
Heater Current | 1.27 A | |
Heater Voltage | 6.3 V | |
Item Diameter | 53 mm | |
Item Height | 125 - 135 mm | |
Plate Dissipation (Wa) | 25 W | |
Plate Resistance (Ra) | 22.5 kΩ | |
Plate Voltage (Ua) | ≤ 500 V | |
Transconductance (S) | 6.3 mA/V | |
T-KT66-GEN-MQ - Matched Quad version | Body Height | 111 - 121 mm |
Capacitance, Grid 1 to All | 16 pF | |
Capacitance, Plate to All | 11.5 pF | |
Capacitance, Plate to Grid 1 | 1.1 pF | |
Grid 2 Voltage | ≤ 400 V | |
Grid Power Dissipation | 3.5 W | |
Heater Current | 1.27 A | |
Heater Voltage | 6.3 V | |
Item Diameter | 53 mm | |
Item Height | 125 - 135 mm | |
Plate Dissipation (Wa) | 25 W | |
Plate Resistance (Ra) | 22.5 kΩ | |
Plate Voltage (Ua) | ≤ 500 V | |
Transconductance (S) | 6.3 mA/V | |
T-KT66-GEN - Single version | Body Height | 111 - 121 mm |
Capacitance, Grid 1 to All | 16 pF | |
Capacitance, Plate to All | 11.5 pF | |
Capacitance, Plate to Grid 1 | 1.1 pF | |
Grid 2 Voltage | ≤ 400 V | |
Grid Power Dissipation | 3.5 W | |
Heater Current | 1.27 A | |
Heater Voltage | 6.3 V | |
Item Diameter | 53 mm | |
Item Height | 125 - 135 mm | |
Plate Dissipation (Wa) | 25 W | |
Plate Resistance (Ra) | 22.5 kΩ | |
Plate Voltage (Ua) | ≤ 500 V | |
Transconductance (S) | 6.3 mA/V |
Specification Sheet | All Models |
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Questions? Contact us at [email protected], or give us a call at 480-296-0890
Product Reviews
This pair of Gold Lion KT66 output tubes replaced a pair of Valve Art KT66 where one shorted out in a JTM45 clone that I build and put into a 1x12 combo cabinet. They sound great and are shorter that than the Valve Art tubes so they fit better in a tighter space giving a little more clearance. I highly recommend them.