CED Tung Sol T 7581A TUNG 7581A Tung Sol Reissue Matched Vacuum Tube P13094135CED-T-7581A-TUNG https://cdnimages.opentip.com/full/CED/CED-T-7581A-TUNG.jpg Tung Sol T 7581A TUNG 7581A Tung Sol Reissue Matched Vacuum Tube Manufacturer Part Number: T-7581A-TUNGRated for more power than the standard 7581 (35W plate dissipation vs 30W plate dissipation). Body Height3.688 in. Capacitance, grid to plate0.6 pF Capacitance, input10 pF Capacitance, output6.5 pF Grid 1 Voltage-14 V Grid Circuit Resistance (Rg), Cathode Bias0.5 MΩ Grid Circuit Resistance (Rg), Fixed Bias0.1 MΩ Heater Current900 mA Heater Voltage6.3 V Heater to cathode voltage (Uk/f)200 V Item Diameter1.562 in. Item Height4.25 in. Plate Current, pentode (Ia)210 mA Plate Current, triode (Ia)72 mA Plate Dissipation (Wa)35 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, pentode25 mA Screen Current, triode5 mA Screen Dissipation5 W Screen Voltage, pentode≤ 450 V, 300 V typical Transconductance (S)6,000 μmhos Packaging Information Packaging DimensionsMatched Pair versionT-7581A-TUNG-MP4.75 in. X 3.5 in. X 1.75 in. Matched Quad versionT-7581A-TUNG-MQ4.75 in. X 3.5 in. X 3.5 in. Single versionT-7581A-TUNG1.5 in. X 1.5 in. X 4 in. Weight (Packaging)Matched Pair versionT-7581A-TUNG-MP0.5644 lbs. Matched Quad versionT-7581A-TUNG-MQ1.1288 lbs. Single versionT-7581A-TUNG0.1411 lbs. T-7581A-TUNG-MP - Matched Pair versionBody Height3.688 in. Capacitance, grid to plate0.6 pF Capacitance, input10 pF Capacitance, output6.5 pF Grid 1 Voltage-14 V Grid Circuit Resistance (Rg), Cathode Bias0.5 MΩ Grid Circuit Resistance (Rg), Fixed Bias0.1 MΩ Heater Current900 mA Heater Voltage6.3 V Heater to cathode voltage (Uk/f)200 V Item Diameter1.562 in. Item Height4.25 in. Plate Current, pentode (Ia)210 mA Plate Current, triode (Ia)72 mA Plate Dissipation (Wa)35 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, pentode25 mA Screen Current, triode5 mA Screen Dissipation5 W Screen Voltage, pentode≤ 450 V, 300 V typical Transconductance (S)6,000 μmhos T-7581A-TUNG-MQ - Matched Quad versionBody Height3.688 in. Capacitance, grid to plate0.6 pF Capacitance, input10 pF Capacitance, output6.5 pF Grid 1 Voltage-14 V Grid Circuit Resistance (Rg), Cathode Bias0.5 MΩ Grid Circuit Resistance (Rg), Fixed Bias0.1 MΩ Heater Current900 mA Heater Voltage6.3 V Heater to cathode voltage (Uk/f)200 V Item Diameter1.562 in. Item Height4.25 in. Plate Current, pentode (Ia)210 mA Plate Current, triode (Ia)72 mA Plate Dissipation (Wa)35 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, pentode25 mA Screen Current, triode5 mA Screen Dissipation5 W Screen Voltage, pentode≤ 450 V, 300 V typical Transconductance (S)6,000 μmhos T-7581A-TUNG - Single versionBody Height3.688 in. Capacitance, grid to plate0.6 pF Capacitance, input10 pF Capacitance, output6.5 pF Grid 1 Voltage-14 V Grid Circuit Resistance (Rg), Cathode Bias0.5 MΩ Grid Circuit Resistance (Rg), Fixed Bias0.1 MΩ Heater Current900 mA Heater Voltage6.3 V Heater to cathode voltage (Uk/f)200 V Item Diameter1.562 in. Item Height4.25 in. Plate Current, pentode (Ia)210 mA Plate Current, triode (Ia)72 mA Plate Dissipation (Wa)35 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, pentode25 mA Screen Current, triode5 mA Screen Dissipation5 W Screen Voltage, pentode≤ 450 V, 300 V typical Transconductance (S)6,000 μmhos 13094135 0841358107870 0.5200lbs 0.00 0.00 0.00

Tung-Sol

48.78 2027-07-12 In Stock Tung Sol T 7581A TUNG 7581A Tung Sol Reissue Matched Vacuum Tube

Tung-Sol T-7581A-TUNG 7581A, Tung-Sol Reissue, Matched Vacuum Tube

Brand Tung-Sol

Shop more from CED

UPC: 0841358107870

SKU: CED-T7581ATUNG

Price: $48.78

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MATCHED PAIR	- + $100.92
MATCHED QUAD	- + $201.84
SINGLE	- + $48.78

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Product Description

Manufacturer Part Number: T-7581A-TUNG

Rated for more power than the standard 7581 (35W plate dissipation vs 30W plate dissipation).

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 (R_g), Cathode Bias

0.5 MΩ

Grid Circuit Resistance (R_g), Fixed Bias

0.1 MΩ

Heater Current

900 mA

Heater Voltage

6.3 V

Heater to cathode voltage (U_k/f)

200 V

Item Diameter

1.562 in.

Item Height

4.25 in.

Plate Current, pentode (I_a)

210 mA

Plate Current, triode (I_a)

72 mA

Plate Dissipation (W_a)

35 W

Plate Resistance (R_a)

22.5 KΩ

Plate Voltage, pentode (U_a)

≤ 500 V, 70 V typical

Plate Voltage, triode (U_a)

≤ 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

Packaging Information

Packaging Dimensions

Matched Pair version

T-7581A-TUNG-MP

4.75 in. X 3.5 in. X 1.75 in.

Matched Quad version

T-7581A-TUNG-MQ

4.75 in. X 3.5 in. X 3.5 in.

Single version

T-7581A-TUNG

1.5 in. X 1.5 in. X 4 in.

Weight (Packaging)

Matched Pair version

T-7581A-TUNG-MP

0.5644 lbs.

Matched Quad version

T-7581A-TUNG-MQ

1.1288 lbs.

Single version

T-7581A-TUNG

0.1411 lbs.

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 (R_g), Cathode Bias

0.5 MΩ

Grid Circuit Resistance (R_g), Fixed Bias

0.1 MΩ

Heater Current

900 mA

Heater Voltage

6.3 V

Heater to cathode voltage (U_k/f)

200 V

Item Diameter

1.562 in.

Item Height

4.25 in.

Plate Current, pentode (I_a)

210 mA

Plate Current, triode (I_a)

72 mA

Plate Dissipation (W_a)

35 W

Plate Resistance (R_a)

22.5 KΩ

Plate Voltage, pentode (U_a)

≤ 500 V, 70 V typical

Plate Voltage, triode (U_a)

≤ 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 (R_g), Cathode Bias

0.5 MΩ

Grid Circuit Resistance (R_g), Fixed Bias

0.1 MΩ

Heater Current

900 mA

Heater Voltage

6.3 V

Heater to cathode voltage (U_k/f)

200 V

Item Diameter

1.562 in.

Item Height

4.25 in.

Plate Current, pentode (I_a)

210 mA

Plate Current, triode (I_a)

72 mA

Plate Dissipation (W_a)

35 W

Plate Resistance (R_a)

22.5 KΩ

Plate Voltage, pentode (U_a)

≤ 500 V, 70 V typical

Plate Voltage, triode (U_a)

≤ 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 (R_g), Cathode Bias

0.5 MΩ

Grid Circuit Resistance (R_g), Fixed Bias

0.1 MΩ

Heater Current

900 mA

Heater Voltage

6.3 V

Heater to cathode voltage (U_k/f)

200 V

Item Diameter

1.562 in.

Item Height

4.25 in.

Plate Current, pentode (I_a)

210 mA

Plate Current, triode (I_a)

72 mA

Plate Dissipation (W_a)

35 W

Plate Resistance (R_a)

22.5 KΩ

Plate Voltage, pentode (U_a)

≤ 500 V, 70 V typical

Plate Voltage, triode (U_a)

≤ 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

Attention CA Residents: Prop 65 Warning

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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