T-7581A-TUNG-MP - Matched Pair version | Body Height | 3.688 in. |
Capacitance, grid to plate | 0.6 pF |
Capacitance, input | 10 pF |
Capacitance, output | 6.5 pF |
Grid 1 Voltage | -14 V |
Grid Circuit Resistance (Rg), Cathode Bias | 0.5 MΩ |
Grid Circuit Resistance (Rg), Fixed Bias | 0.1 MΩ |
Heater Current | 900 mA |
Heater Voltage | 6.3 V |
Heater to cathode voltage (Uk/f) | 200 V |
Item Diameter | 1.562 in. |
Item Height | 4.25 in. |
Plate Current, pentode (Ia) | 210 mA |
Plate Current, triode (Ia) | 72 mA |
Plate Dissipation (Wa) | 30 W |
Plate Resistance (Ra) | 22.5 KΩ |
Plate Voltage, pentode (Ua) | ≤ 500 V, 70 V typical |
Plate Voltage, triode (Ua) | ≤ 450 V, 250 V typical |
Screen Current, pentode | 25 mA |
Screen Current, triode | 5 mA |
Screen Dissipation | 5 W |
Screen Voltage, pentode | ≤ 450 V, 300 V typical |
Transconductance (S) | 6,000 μmhos |
T-7581A-TUNG-MQ - Matched Quad version | Body Height | 3.688 in. |
Capacitance, grid to plate | 0.6 pF |
Capacitance, input | 10 pF |
Capacitance, output | 6.5 pF |
Grid 1 Voltage | -14 V |
Grid Circuit Resistance (Rg), Cathode Bias | 0.5 MΩ |
Grid Circuit Resistance (Rg), Fixed Bias | 0.1 MΩ |
Heater Current | 900 mA |
Heater Voltage | 6.3 V |
Heater to cathode voltage (Uk/f) | 200 V |
Item Diameter | 1.562 in. |
Item Height | 4.25 in. |
Plate Current, pentode (Ia) | 210 mA |
Plate Current, triode (Ia) | 72 mA |
Plate Dissipation (Wa) | 30 W |
Plate Resistance (Ra) | 22.5 KΩ |
Plate Voltage, pentode (Ua) | ≤ 500 V, 70 V typical |
Plate Voltage, triode (Ua) | ≤ 450 V, 250 V typical |
Screen Current, pentode | 25 mA |
Screen Current, triode | 5 mA |
Screen Dissipation | 5 W |
Screen Voltage, pentode | ≤ 450 V, 300 V typical |
Transconductance (S) | 6,000 μmhos |
T-7581A-TUNG - Single version | Body Height | 3.688 in. |
Capacitance, grid to plate | 0.6 pF |
Capacitance, input | 10 pF |
Capacitance, output | 6.5 pF |
Grid 1 Voltage | -14 V |
Grid Circuit Resistance (Rg), Cathode Bias | 0.5 MΩ |
Grid Circuit Resistance (Rg), Fixed Bias | 0.1 MΩ |
Heater Current | 900 mA |
Heater Voltage | 6.3 V |
Heater to cathode voltage (Uk/f) | 200 V |
Item Diameter | 1.562 in. |
Item Height | 4.25 in. |
Plate Current, pentode (Ia) | 210 mA |
Plate Current, triode (Ia) | 72 mA |
Plate Dissipation (Wa) | 30 W |
Plate Resistance (Ra) | 22.5 KΩ |
Plate Voltage, pentode (Ua) | ≤ 500 V, 70 V typical |
Plate Voltage, triode (Ua) | ≤ 450 V, 250 V typical |
Screen Current, pentode | 25 mA |
Screen Current, triode | 5 mA |
Screen Dissipation | 5 W |
Screen Voltage, pentode | ≤ 450 V, 300 V typical |
Transconductance (S) | 6,000 μmhos |
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