Vacuum Tube - KT88, JJ Electronics
The JJ Electronic KT88 is a sonically faithful reproduction of the original tubes with a robust construction encased in a thick glass envelope. The JJ KT88 delivers a powerful 42 Watts with plenty of headroom to spare. This tube has a tone that is warm and lively with a detailed and balance response. The JJ KT88 is an excellent choice for Hi-Fi stereo equipment as well as guitar amplifiers. It can be used in place of 6550 tubes.
Matched versions of this tube use Apex Matching
RoHS Compliant
Accessory Items:
Single or Matched | Our Part Number | UPC/EAN | JJ Electronics Part Number |
---|---|---|---|
Apex Matched Pair | T-KT88-JJ-MP | 609722123235 | |
Apex Matched Quad | T-KT88-JJ-MQ | 609722123242 | |
Apex Matched Sextet | T-KT88-JJ-MS | 609722123259 | |
Single | T-KT88-JJ | 609722123228 | KT88 |
Body Height | 110 mm | ||
Cathode Current (Ik) | ≤ 230 mA | ||
Filament Current (If) | 1.6 A | ||
Filament Voltage (Uf) | 6.3 V | ||
Gain (μ) | 8 | ||
Grid 1 voltage (Ug1) | -15 V typical | ||
Grid 2 current (Ig2) | ≤ 7 mA | ||
Grid 2 dissipation (Wg2) | 8 W | ||
Grid 2 voltage (Ug2) | ≤ 600 V, 250 V typical | ||
Grid capacitance (cg1) | 16.5 pF | ||
Grid to Plate Capacitance (ca/g) | 2.3 pF | ||
Internal Resistance (Ri) | 12 kΩ | ||
Item Diameter | 52 mm | ||
Item Height | 125 mm | ||
Plate Capacitance (ca) | 10 pF | ||
Plate Current (Ia) | 140 mA | ||
Plate Dissipation (Wa) | ≤ 42 W | ||
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | ||
Transconductance (S) | 11.5 mA/V |
Packaging Dimensions | Apex Matched Pair version | T-KT88-JJ-MP | 5.3 in. × 4.5 in. × 2.3 in. |
Apex Matched Quad version | T-KT88-JJ-MQ | 5.3 in. × 4.5 in. × 4.5 in. | |
Apex Matched Sextet version | T-KT88-JJ-MS | 6.8 in. × 5.3 in. × 4.5 in. | |
Single version | T-KT88-JJ | 2.3 in. × 2.3 in. × 5.1 in. | |
Weight (Packaging) | Apex Matched Pair version | T-KT88-JJ-MP | 0.5512 lbs. |
Apex Matched Quad version | T-KT88-JJ-MQ | 1.1024 lbs. | |
Apex Matched Sextet version | T-KT88-JJ-MS | 1.6536 lbs. | |
Single version | T-KT88-JJ | 0.2756 lbs. |
T-KT88-JJ-MP - Apex Matched Pair version | Body Height | 110 mm |
Cathode Current (Ik) | ≤ 230 mA | |
Filament Current (If) | 1.6 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μ) | 8 | |
Grid 1 voltage (Ug1) | -15 V typical | |
Grid 2 current (Ig2) | ≤ 7 mA | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid 2 voltage (Ug2) | ≤ 600 V, 250 V typical | |
Grid capacitance (cg1) | 16.5 pF | |
Grid to Plate Capacitance (ca/g) | 2.3 pF | |
Internal Resistance (Ri) | 12 kΩ | |
Item Diameter | 52 mm | |
Item Height | 125 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 140 mA | |
Plate Dissipation (Wa) | ≤ 42 W | |
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | |
Transconductance (S) | 11.5 mA/V | |
T-KT88-JJ-MQ - Apex Matched Quad version | Body Height | 110 mm |
Cathode Current (Ik) | ≤ 230 mA | |
Filament Current (If) | 1.6 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μ) | 8 | |
Grid 1 voltage (Ug1) | -15 V typical | |
Grid 2 current (Ig2) | ≤ 7 mA | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid 2 voltage (Ug2) | ≤ 600 V, 250 V typical | |
Grid capacitance (cg1) | 16.5 pF | |
Grid to Plate Capacitance (ca/g) | 2.3 pF | |
Internal Resistance (Ri) | 12 kΩ | |
Item Diameter | 52 mm | |
Item Height | 125 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 140 mA | |
Plate Dissipation (Wa) | ≤ 42 W | |
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | |
Transconductance (S) | 11.5 mA/V | |
T-KT88-JJ-MS - Apex Matched Sextet version | Body Height | 110 mm |
Cathode Current (Ik) | ≤ 230 mA | |
Filament Current (If) | 1.6 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μ) | 8 | |
Grid 1 voltage (Ug1) | -15 V typical | |
Grid 2 current (Ig2) | ≤ 7 mA | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid 2 voltage (Ug2) | ≤ 600 V, 250 V typical | |
Grid capacitance (cg1) | 16.5 pF | |
Grid to Plate Capacitance (ca/g) | 2.3 pF | |
Internal Resistance (Ri) | 12 kΩ | |
Item Diameter | 52 mm | |
Item Height | 125 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 140 mA | |
Plate Dissipation (Wa) | ≤ 42 W | |
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | |
Transconductance (S) | 11.5 mA/V | |
T-KT88-JJ - Single version | Body Height | 110 mm |
Cathode Current (Ik) | ≤ 230 mA | |
Filament Current (If) | 1.6 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μ) | 8 | |
Grid 1 voltage (Ug1) | -15 V typical | |
Grid 2 current (Ig2) | ≤ 7 mA | |
Grid 2 dissipation (Wg2) | 8 W | |
Grid 2 voltage (Ug2) | ≤ 600 V, 250 V typical | |
Grid capacitance (cg1) | 16.5 pF | |
Grid to Plate Capacitance (ca/g) | 2.3 pF | |
Internal Resistance (Ri) | 12 kΩ | |
Item Diameter | 52 mm | |
Item Height | 125 mm | |
Plate Capacitance (ca) | 10 pF | |
Plate Current (Ia) | 140 mA | |
Plate Dissipation (Wa) | ≤ 42 W | |
Plate Voltage (Ua) | ≤ 800 V, 250 V typical | |
Transconductance (S) | 11.5 mA/V |
Specification Sheet | All Models |
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Questions? Contact us at [email protected], or give us a call at 480-755-4712
Substitute Products
The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.