Vacuum Tube - 7591, JJ Electronics

JJ Electronics
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Vacuum Tube - 7591, JJ Electronics

Starting at: $17.95
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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.

Apex Tube Matching
Matched versions of this tube use Apex Matching
RoHS Compliant
Item ID:
JJ Electronics, Apex Matched
Part Numbers
Single or MatchedOur Part NumberUPC/EAN
Apex Matched PairT-7591-S-JJ-MP609722122924
Apex Matched QuadT-7591-S-JJ-MQ609722122931
Product Measurements
Body Height93 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 Bias1 MΩ
Grid Circuit Resistance (Rg), Fixed Bias0.3 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 Diameter33.3 mm
Item Height79 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 Information
Packaging DimensionsApex Matched Pair version4.8 in. × 3.3 in. × 1.6 in.
Apex Matched Quad version4.8 in. × 3.3 in. × 3.3 in.
Single version1.6 in. × 1.6 in. × 4.6 in.
Weight (Packaging)Apex Matched Pair version0.228 lbs.
Apex Matched Quad version0.456 lbs.
Single version0.114 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet454.11 KB

Questions and Answers

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Asked by Anonymous on March 7th, 2018.
Matt H
March 7th, 2018
This tubes is 19 watts.

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