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KT150 tubes

$375
Quartet of Tungsol KT-150 martched from Upscale Audio , just the time to hear them some hours in my amp, So they are praticaly brand new. Perfect for Primaluna Dialog Premium amp....
Condition: 10/10
Posted: today
US Audio Mart
#TubesUSA

Woo Audio WA6 w/ Approx. A$700 Worth of Upgrade Tubes

$1300
Selling my Woo Audio WA6 Amplifier in AS NEW condition. I bought this amplifier back in July 2014 from Addicted to Audio. This amplifier sounds amazing with my AKG K702 as well as my HiFiMan HE560 hea...
Condition: 10/10
Posted: today

KT120 tubes

$375
Quartet of Tungsol KT-150 martched from Upscale Audio , just the time to hear them some hours in my amp, So they are praticaly brand new. Perfect for Primaluna Dialog Premium amp....
Condition: 10/10
Posted: today
US Audio Mart
#TubesUSA

Genalex KT-88 Big Sale On Cosmetically Challenged Tubes!

$159
New $224
I have (2) matched quads and (9) matched pairs of brand new Genalex Gold Lion KT-88 tubes. These tubes are fully tested and matched to my usual very high standards and are FULLY GUARANTEED - but they ...
Condition: 10/10
Posted: 2 days ago
Audio Asylum Trader
#TubesUSA

Western Electric 300B, matched pair NOS from 2006 new in box with original documentation

$3000
New old stock Western Electric 300B triode tubes from 2006. These are a matched pair with consecutive serial numbers and matching characteristics. These were removed from boxes for photographs and tes...
Condition: 10/10
Posted: 2 days ago
US Audio Mart
#Western Electric #TubesUSA

Raytheon 5814 2 mica black plate

$20
For sale one Raytheon 5814 2 mica black plate, early 1950's with square getter. This is one of the very best 12au7/5814 equivalents. Tested on a Hickock tester, following results: 2500/2700 where mini...
Condition: 7/10
Posted: 3 days ago
Audio Asylum Trader
#TubesUSA

Sylvania EL84 pair

$25
I have a pair of Sylvania black plate EL84. Highly desirable El84 tubes. One tube is labelled Sylvania, the other RCA, but the latter is clearly Sylvania due to construction. Here are test results, fr...
Condition: 7/10
Posted: 3 days ago
Audio Asylum Trader
#TubesUSA

Vintage RCA UX-245 NOS tubes

$250
Vintage tubes recently purchased from Andy at Vintage Tube Services to try in my Lampizator Golden Gate Dac....
Condition: 10/10
Posted: 3 days ago
US Audio Mart
#TubesUSA

Nice 5751 Dual Triodes

$45
NOS Raytheon 'Windmill Getter' 5751 - $75...
Posted: 4 days ago
US Audio Mart
#TubesUSA

RCA 5692 6SN7 Black Plate, 3 Mica, Red Base - 2 Tubes

$195
2 RCA 5692 6SN7 Black Plate, 3 Mica, Red Base Tubes...
Posted: 4 days ago
US Audio Mart
#TubesUSA

Tung-Sol CTL 6SN7GT Round Plate, Black Glass, Oval Mica - 2 Tubes

$300
2 Tung-Sol CTL 6SN7GT Round Plate, Black Glass, Oval Mica Tubes....
Posted: 4 days ago
US Audio Mart
#TubesUSA

Mullard CV181 ECC32 Black Plates (Pair)

$600
Purchased from TubeWorldExpress a couple of months ago and put less than 50 hours on these tubes - no issues with them whatesoever, I was using them in a headphone amp and I've just decided to move on...
Condition: 9/10
Posted: 5 days ago
US Audio Mart
#TubesUSA

AUDIO RESEARCH VSI 60 amplifier w/ KT 120 tubes

$4169
New $4,372
Condition: 6/10
Posted: 5 days ago

Cayin A-50T tubes integrated amplifier

$1000
Great little integrated tube amplifier.2 x 12AX7 - Mullard Reissue CV4004, Matched Pair 2 x 12AU7 - JAN Philips 6189W, Matched Pair 4 x EL34-Mul - Mullard Reissue EL34 Power Vacuum Tube, Matched QuadT...
Condition: 7/10
Posted: 5 days ago
Audio Asylum Trader
#Cayin #Integrated AmplifiersUSA

Tung Sol 6SN7 Assorted GTB/GT

$50
Various Tung Sol 6SN7 tubes priced according to measurements. They are the Triangle Plates. 3,000 being the time to change tubes. 3500/3900; 3800/4000 -GTB...weak 15.00ea 6000/6000-GTB. Measures as ne...
Posted: 6 days ago
Audio Asylum Trader
#TubesUSA

Telefunken ECC83/12AX7 Four Matched Smooth Plates ! Very Strong ! $40. per tube !

$160
Here is a nice sounding, strong testing, matched quad of four genuine Telefunken ECC83/12AX7 tubes. These are the legendary smooth plate type, with the molded diamond and date codes on the bottoms. Al...
Condition: 8/10
Posted: 6 days ago
Audio Asylum Trader
#TubesUSA

PRICE REDUCED 10 (ten) Genuine Tung-Sol 6550s

$700
I have 10 original (not Russian) Tung-Sol 6550 output tubes for sale, the 'Holy Grail' of output tubes. These tubes range in condition from NOS (about half of them) to medium use but I will gladly ref...
Condition: 8/10
Posted: 7 days ago
US Audio Mart
#TubesUSA

Quad TungSol KT 120

$145
I have a ' Like New ' Quad of Jim McShane TungSol KT120's ....
Condition: 9/10
Posted: 8 days ago
US Audio Mart
#Quad #TubesUSA

Philips 5R4GYS Cryo Treated and hardly used

$90
Philips 5R4GYS bought new from Upscale Audio in 2014 and used for perhaps 20 hours or less. Cryo treated. Current new price at Upscale is $147.Thanks for looking, questions welcomed....
Condition: 9/10
Posted: 10 days ago
Audio Asylum Trader
#Philips #TubesUSA

Genalex Gold Lion ECC88/6922 tubes, BRAND NEW PAIR, Balanced Triodes

$69
This listing for sale a pair of Genalex Gold Lion ECC88/6922 tubes, Brand New, Balanced Triodes (see attached actually pictures)....
Condition: 10/10
Posted: 10 days ago
US Audio Mart
#TubesUSA

Cryogenic-treated Tung-Sol KT120 Matched Quad

$150
These are the cryogenic-treated versions bought from Upscale Audio last year, fully matched, have less than 20 hours of use. I hate to let them go but now that I have tweaked my system to precisely wh...
Condition: 9/10
Posted: 12 days ago
US Audio Mart
#Quad #TubesUSA

Telefunken 12AX7 Smooth or Ribbed Plate with Diamond Bottom NOS testing Several Available

$60
Telefunken 12AX7 Smooth or Ribbed Plate tubes made in Germany.|Labeled as Telefunken or Fisher or Dynaco.All have long plates and diamond on bottom.$60 for one tube.All test like very strong like new ...
Condition: 9/10
Posted: 12 days ago
Audio Asylum Trader
#TubesUSA

Telefunken 12AU7 Smooth or Ribbed Plate with Diamond Bottom NOS testing Several Available

$55
Telefunken 12AU7 Smooth Plate or Ribbed Plate tubes made in Germany. All have long plates and diamond on bottom.$55 for one tube.All test like very strong like new and available for matched pairs, qua...
Condition: 9/10
Posted: 12 days ago
Audio Asylum Trader
#TubesUSA

Amperex Bugle Boy 6DJ8/ECC88 Many Matched Pairs O-Getter Holland Test Very Strong

$65
I have many Matched pairs of Amperex Bugle Boy ECC88/6DJ8 tubes made in Heerlen, Holland.Famous Amperex sound: warm and rich with 3-D soundstage and zero driness and full bass.As you may already know,...
Condition: 9/10
Posted: 13 days ago
Audio Asylum Trader
#TubesUSA

Sylvania 6SL7WGT NOS/NIB JAN 1968

$55
Pair of 1968 NOS/NIB JAN Sylvania 6SL7WGT pre-amp tubes. Date code: 68-40. Brown miconal bases. Black oval-shaped plates. Round getter. Test results from a rebuilt, calibrated correctly, Hickok 539C t...
Condition: 10/10
Posted: 13 days ago
Audio Asylum Trader
#TubesUSA

GE 5-Star 5751 Triple Mica Black Plate, matched pair, tests very strong

$105
Rare matched pair. No leaks, shorts or gas....
Condition: 8/10
Posted: 14 days ago
US Audio Mart
#TubesUSA

GE 5751 Silver Clip TMBP, matched pair, tests NEW

$135
Extremely rare GE 5751 'Silver Clip' triple Mica Black Plate, matched pair. No leaks, shorts, or gas....
Condition: 8/10
Posted: 14 days ago
US Audio Mart
#TubesUSA

Russian Military 6J8, NOS, Tests NEW, Matched Pair

$20
NOS Russian 6J8, 6SJ7 equivalent, matched pair, tests NEW / very strong, with no leaks, shorts, or gas....
Condition: 10/10
Posted: 14 days ago
US Audio Mart
#TubesUSA

Amperex 12AU7 Long Plate D Getter perfectly matched pair, very strong, Amplitrex tested

$180
Very hard to find, well matched pair of Amperex Holland 1958 mfg. Long Plate (17mm) D getter 12AU7's. Professionally tested on an Amplitrex AT1000 digital tube tester at near NOS readings of 95%/95% a...
Condition: 7/10
Posted: 14 days ago
Audio Asylum Trader
#TubesUSA

Schiit Lyr 2 and Tubes

$420
Selling a good-condition Schiit Lyr 2 with EH6922, JJ EC88 and Raytheon 6bz7's. No idea what happened to the original Canadian 6bz7's. There is a small nick above the volume knob that you can see in t...
Posted: 14 days ago

Schiit Lyr 2 w/ LSST Tubes ---- Schiit SYS

$435
I'm cleaning house with most of my hi-fi gear. I've taken on other interests, and don't really use this stuff as much as it deserves anymore. I have not done much business on Head-Fi lately, but I do ...
Posted: 15 days ago

Quad of Genalex Gold Lion KT88 tubes, new testing, one broken guide pin

$120
Quad of Genalex Gold Lion KT88 tubes, new testing, one broken guide pin....
Condition: 9/10
Posted: 15 days ago
US Audio Mart
#Quad #TubesUSA

Cary Audio Design SLP-98P F1 w/ Remote and 12 pairs of tested tubes

$2300
Make an Offer.Here is a Cary Audio Designs SLP-98P F1 with Remote. Please see the photos for the very good cosmetic condition. There are some small nicks in the paint around the rim of the front left ...
Condition: 8/10
Posted: 17 days ago

Amperex 6922 PQ White Label Matched Pair NOS NIB Phono Grade Gold Pin

$240
Amperex 6922/E88CC White Label vacuum tube with gold pins and large O-Getter.Your choice of Label: PQ or USN/USN-CEP (US Navy, Military application).Made in 1960'sBest of the best 6922 tubes in terms ...
Condition: 10/10
Posted: 17 days ago
Audio Asylum Trader
#TubesUSA

Sophia Electric Princess 300b Tubes

$265
A real nice pair of Sophia Electric Princess 300b Tubes. I got these with an amp I purchased and do mot need them. Shipping in con US included in price. Please, no time wasters. A great price on well ...
Condition: 8/10
Posted: 17 days ago
US Audio Mart
#Sophia Electric #TubeUSA

Sonic Frontiers SFD-1 MKII DAC SE+ upgrade Telefunken tubes

$1250
New $900
Selling a Sonic Frontiers SFD-1 MK-II DAC in good solid cosmetic condition & in perfect working order. It has Telefunken 6922 NOS tubes with maybe 500 hours on them, and a recent SE+ upgrade from part...
Posted: 18 days ago

Amperex 6922 PQ White Label Matched Pair NOS NIB Phono Grade Gold Pin, Several available

$240
Amperex 6922/E88CC White Label vacuum tube with gold pins and large O-Getter....
Condition: 10/10
Posted: 18 days ago
US Audio Mart
#TubesUSA

10,000 NOS NIB PHILIPS 8532W 8532 62 EC98 WORLDS BEST 6J4 / 6J4W TUBES 6SCP

$7462
DESIGN YOUR AMPLIFIER VINTAGE USA 6J4 6J4W 2 = 12AX7...
Posted: 18 days ago

Shuguang 845 B 25 hours

$165
New $280
Mint matched and rated pair of Shuguang 845 Bs. These were purchased as a back up for an 845 amp I used to have. I listened to them for probably 20=25 hours, so they are virtually new. These are match...
Condition: 9/10
Posted: 18 days ago
Audio Asylum Trader
#TubesUSA

Phillips JAN 5687WB matched pair, 1987 vintage

$21
Purchased for my AMR CD-77 player but never used them. The AMR, which I loved is gone. Purchased from a trusted 100% seller, but untested by myself. A matched pair of JAN 5687WB tubes, vintage 1987$21...
Condition: 9/10
Posted: 19 days ago
Audio Asylum Trader
#TubesUSA

GE 5 Star 5687WB early 1970's vintage

$27
Purchased for my AMR CD-77 player but never used them. The AMR, which I loved is gone. Purchased from a trusted 100% seller, but untested by myself. He tested them at; 88/82 and 74/98.$27 for the pair...
Condition: 8/10
Posted: 19 days ago
Audio Asylum Trader
#TubesUSA
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