CMI 7591A Vacuum Tube. Tests good on my Jackson 648S at 97 with line 70 and tops 130. No shorts or leaks detected. USA sales only. No international sales.
Item Tag: 7591A
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GE General Electric 7591A Vacuum Tube : Coin Base
GE General Electric 7591A Vacuum Tube. Up for sale is a GE General Electric 7591A Vacuum Tube. Model : 7591A ( Coin Base/O-Getter ). I tested tubes on my TV7B/U tube tester. Test Results : Tube 1 – 47.
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Vintage RCA 7591A Vacuum Tube | NOS | Black Plate | Made in USA | Rare Hi-Fi…
This is a premium vintage RCA 7591A power pentode, highly sought after for the legendary Fisher 500C, 800C, and McIntosh amplifiers. Condition: Beautiful New Old Stock (NOS) appearance. Crystal clear glass with a strong mirror-like getter. Design: Features the superior Black Plate construction. Testing: Visual inspection only; sold untested/as-is. This is a high-value piece of audio history. It will be professionally packed, double-boxed, and insured for shipping.
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Strong Matched Pair of GE General Electric 7591A Vacuum Tubes : Coin Base
Up for sale is a Strong Matched Pair of GE General Electric 7591A Vacuum Tubes. Model : 7591A ( Coin Base/O-Getter ). I tested tubes on my TV7B/U tube tester. What you see is exactly what you get. As the photos show, they are in good condition.
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Raytheon Realistic Lifetime 7591A Tube, Disc Getter, Tests NOS
Vintage 1960’s Raytheon / Realistic Lifetime 7591A vacuum tube. Disk getter, chrome top. Tests NOS @100%+.
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⭐USA⭐ GE 7591a 7591 COIN BASE Tube Tested Good on TV-7 Tester 66@36min
TUBE’s TEST RESULT’s TV-7/u Tested! TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! ( USA ) .
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⭐USA⭐ RCA 7591a Tube Tested Good on TV-7 Tester 50@36min
TUBE’s TEST RESULT’s TV-7/u Tested! TESTED WITH a (TV-7/U) FOR GAS, SHORTS, AND MUTUAL CONDUCTANCE AND ARE MOSTLY STRONG TUBES! ( USA ) .
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TWO The Fisher 7591A Tubes / Amplitrex Tested = Good But Not Great / Base Damage
TWO The Fisher 7591A vacuum tubes. Tested on Amplitrex AT-1000 tube tester (fixed bias mode). Tubes test at 6950 and 8070 where 6630 micromhos is pass/fail grade. This is not great matched pair, but two good singles.