ONE RCA 7591A vacuum tube. Tested on Amplitrex AT-1000 tube tester (fixed bias mode). CE date code = October 1968. +100% plate current test results. Tube 1: 11520 micromhos @ 76.2mA plate current emissions.
Item Tag: RCA
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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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RCA 7591A Pre owned vacuum tube
The RCA 7591A vacuum tube is a pre-owned vintage audio component that belongs to the category of vintage electronics. Manufactured by RCA, this vacuum tube is a specific model known for its quality and performance in vintage audio systems. With its unique design and brand heritage, the RCA 7591A tube is sought after by audiophiles and collectors looking to restore or enhance their vintage audio setups with a touch of nostalgia and authenticity.
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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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⭐USA⭐ TEST NOS RCA 7591a Tube Tested on TV7 U & Sencore Tested at 62@36min
TESTED NOS! 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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7591 TUNG SOL VACUUM TUBES PAIR NOS
Tested on a Heathkit TT1, minimum good tube is 6600 µmhos and NOS tubes tested at 10200 µmhos. Also tested on a Hickok 539c. We are here to help!
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5814A NOS radio GE audio amplifier vintage vacuum tube valve tested 12Au7A ECC82
Tube has grey ribbed plate, top O getter, tube tests: 82, 84 %.
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2 x 5814A (12AU7) RCA Tubes*Super Strong Matched*Black-O*MEATBALL*NOS_NIB* #R2
2 x 5814A (12AU7) RCA Tubes. Tested on Enhanced Triplet E3444 Laboratory Tester. NIB = boxes may be tattered. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable.