Matched Quad (4) Sylvania 6SN7GTB Black V Plate O Top Getter Tubes 539C&Maxi Tested NOS NIB. Near perfectly matched for both GM and MU (Gain). Nice shiny getters and pins. Date codes are also matching.
Item Tag: Quad
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Matched Quad (4) GE 8417 Vacuum Tubes High Power Output Tube Tests Very Strong
Matched Quad (4) General Electric GE 8417 Vacuum Tube High Power Output Tube 3 in original box and 1 is in a generic box. Tubes have been tested on a B&K Dyna-jet model 747 tube tester. One pair (2) test at 78 and one pair (2) test at 85 with 60 beeing the minimum good. Although tested, due to the age and the risk of damage due to misuse all vacuum tubes are sold as-is, no returns or refunds.
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NEW MATCHED QUAD Electro Harmonix EL34 EH tubes valves EL34EH
New in generic boxes. Fully tested and professionally matched. Quickest shipping from NessTone Tube Sales
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2 NEC 6267 EF86 Akai Roberts Fisher Quad amplifier receiver preamplifier tubes
All the tubes in this lot have been tested on my Sencore Continental 2 ,and they test good.
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NOS QUAD (4) KEN RAD 7193 2C22 Black Plate (6J5 6SN7 sub) Vacuum Tubes C.9918
Model 7193. Using as SUB for 6J5G and 6SN7 require the use of an adapter. (ADAPTER NOT INCLUDED). Condition NOS. Plate Black Plate. ALL TUBE AUDIO. Tube Specifications. Tube Type Triode.
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Quad UX-112a Engraved base Radiotron Cunningham RCA Sylvania UX SX CX
4 pieces 112A tube labeled Sylvania SX-112, Cunningham (RCA) CX-112, and 2 pieces Radiotron (RCA) UX-112.Tubes are guaranteed.
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New 4x Tung-Sol EL84 / 6BQ5 | Matched Quad / Quartet | Power Tubes | Free Ship
The Tung-Sol EL84 reissue is a great sounding tube. Bright, punchy, and smooth with a nice mid presense, making it ideal for classic rock and blues. These are very close and tightly matched tubes. Having matched power tubes is important because itreduces hum from your amplifier.
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Quad II Mono-Block Tube Power Amplifiers, w/ original packaging boxes, Excellent
A rare pair of Quad II Mono-Block Tube Power Amplifiers. They are in excellent condition, with only minor scratches and dents that do not affect sound quality. The original Quad II monoblock amplifier is a 15-watt RMS tube amplifier known for its low distortion (<0.1% at 700Hz), using 2 x EF86, 2 x KT66, and 1 x GZ32 tubes.
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NOS Match 1 Quad/ 4pcs FIVER 6V6G tubes CV509 6V6 128% #1
NOS Match Quad/ 4pcs FIVER 6V6G tubes. Rectifier 5U4/5Z3/GZ32/6X4. Ip:58,58,58,58(mA) 128% (45mA=100%). Excellent Quality NOS valve. Amplitrex AT-1000 TUBE TESTER Result Square getter. Grey ST glass.