Vacuum Tube - 7591, JJ Electronics
The JJ Electronic 7591 is a reliable and accurate reproduction of the classic tube. This 19 Watt pentode has been used in a variety of amplifiers including Hi-Fi amps and Ampegs. The JJ 7591 is a great replacement for any 7591 tube position.
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-7591-S-JJ-MP | 609722122924 | |
Apex Matched Quad | T-7591-S-JJ-MQ | 609722122931 | |
Single | T-7591-S-JJ | 609722122917 | 7591S |
Body Height | 93 mm | ||
Cathode Current (Ik) | ≤ 85 mA | ||
Filament Current (If) | 0.8 A | ||
Filament Voltage (Uf) | 6.3 V | ||
Gain (μ) | 16.8 | ||
Grid 2 dissipation (Wg2) | 3.3 W | ||
Grid Circuit Resistance (Rg), Cathode Bias | 1 MΩ | ||
Grid Circuit Resistance (Rg), Fixed Bias | 0.3 MΩ | ||
Grid Current 2 (Ig2) | 8 mA | ||
Grid Voltage 1 (Ug1) | -10 V typical | ||
Grid Voltage 2 (Ug2) | ≤ 440 V, 300 V typical | ||
Grid capacitance (cg1) | 10 pF | ||
Grid to Plate Capacitance (ca/g) | 0.25 pF | ||
Item Diameter | 33.3 mm | ||
Item Height | 79 mm | ||
Plate Capacitance (ca) | 5 pF | ||
Plate Current (Ia) | 60 mA | ||
Plate Dissipation (Wa) | ≤ 19 W | ||
Plate Voltage (Ua) | ≤ 550 V, 300 V typical | ||
Transconductance (S) | 10 mA/V |
Packaging Dimensions | Apex Matched Pair version | T-7591-S-JJ-MP | 4.8 in. × 3.3 in. × 1.6 in. |
Apex Matched Quad version | T-7591-S-JJ-MQ | 4.8 in. × 3.3 in. × 3.3 in. | |
Single version | T-7591-S-JJ | 1.6 in. × 1.6 in. × 4.6 in. | |
Weight (Packaging) | Apex Matched Pair version | T-7591-S-JJ-MP | 0.2204 lbs. |
Apex Matched Quad version | T-7591-S-JJ-MQ | 0.4408 lbs. | |
Single version | T-7591-S-JJ | 0.1102 lbs. |
T-7591-S-JJ-MP - Apex Matched Pair version | Body Height | 93 mm |
Cathode Current (Ik) | ≤ 85 mA | |
Filament Current (If) | 0.8 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μ) | 16.8 | |
Grid 2 dissipation (Wg2) | 3.3 W | |
Grid Circuit Resistance (Rg), Cathode Bias | 1 MΩ | |
Grid Circuit Resistance (Rg), Fixed Bias | 0.3 MΩ | |
Grid Current 2 (Ig2) | 8 mA | |
Grid Voltage 1 (Ug1) | -10 V typical | |
Grid Voltage 2 (Ug2) | ≤ 440 V, 300 V typical | |
Grid capacitance (cg1) | 10 pF | |
Grid to Plate Capacitance (ca/g) | 0.25 pF | |
Item Diameter | 33.3 mm | |
Item Height | 79 mm | |
Plate Capacitance (ca) | 5 pF | |
Plate Current (Ia) | 60 mA | |
Plate Dissipation (Wa) | ≤ 19 W | |
Plate Voltage (Ua) | ≤ 550 V, 300 V typical | |
Transconductance (S) | 10 mA/V | |
T-7591-S-JJ-MQ - Apex Matched Quad version | Body Height | 93 mm |
Cathode Current (Ik) | ≤ 85 mA | |
Filament Current (If) | 0.8 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μ) | 16.8 | |
Grid 2 dissipation (Wg2) | 3.3 W | |
Grid Circuit Resistance (Rg), Cathode Bias | 1 MΩ | |
Grid Circuit Resistance (Rg), Fixed Bias | 0.3 MΩ | |
Grid Current 2 (Ig2) | 8 mA | |
Grid Voltage 1 (Ug1) | -10 V typical | |
Grid Voltage 2 (Ug2) | ≤ 440 V, 300 V typical | |
Grid capacitance (cg1) | 10 pF | |
Grid to Plate Capacitance (ca/g) | 0.25 pF | |
Item Diameter | 33.3 mm | |
Item Height | 79 mm | |
Plate Capacitance (ca) | 5 pF | |
Plate Current (Ia) | 60 mA | |
Plate Dissipation (Wa) | ≤ 19 W | |
Plate Voltage (Ua) | ≤ 550 V, 300 V typical | |
Transconductance (S) | 10 mA/V | |
T-7591-S-JJ - Single version | Body Height | 93 mm |
Cathode Current (Ik) | ≤ 85 mA | |
Filament Current (If) | 0.8 A | |
Filament Voltage (Uf) | 6.3 V | |
Gain (μ) | 16.8 | |
Grid 2 dissipation (Wg2) | 3.3 W | |
Grid Circuit Resistance (Rg), Cathode Bias | 1 MΩ | |
Grid Circuit Resistance (Rg), Fixed Bias | 0.3 MΩ | |
Grid Current 2 (Ig2) | 8 mA | |
Grid Voltage 1 (Ug1) | -10 V typical | |
Grid Voltage 2 (Ug2) | ≤ 440 V, 300 V typical | |
Grid capacitance (cg1) | 10 pF | |
Grid to Plate Capacitance (ca/g) | 0.25 pF | |
Item Diameter | 33.3 mm | |
Item Height | 79 mm | |
Plate Capacitance (ca) | 5 pF | |
Plate Current (Ia) | 60 mA | |
Plate Dissipation (Wa) | ≤ 19 W | |
Plate Voltage (Ua) | ≤ 550 V, 300 V typical | |
Transconductance (S) | 10 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
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Product Reviews
These are great tubes. I use these in my Vintage Gibson guitar amplifiers.