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Mcintosh Unknown - McIntosh MC30 amplifier pair - Yves Beauvais updated & excellent- GE, Telefunken, RCA tubes

$3400
If you are one of the many waiting on a pair of Yves Beauvais updated McIntosh MC30s, here's your chance to buy a pair now and without the wait. I bought these MC30s last year, and have put together a...
Condition: 9/10
Posted: 1 day ago
US Audio Mart
#Mcintosh #TubeUSA

Set of 4 - 26 tubes US globe RCA CX UX tested Hickok 539c

$44
Up for sale, (4) used #26 tubes. Vintage US manufacture 1930-40s. Similar shape and height with large flat chrome plates. All have etched print on bases. Pins are decent. Bases are snug, and there are...
Condition: 7/10
Posted: 3 days ago
Audio Asylum Trader
#TubesUSA

Pathos Acoustics Unknown - Pathos Aurium Silver with extra tubes

$800
FS is a great working condition Pathos Aurium Hybrid AMP. This amp is my favorite amp in this price range, it can drive from Th900/ED5 to hd800/T1 with no problems and sounds amazing....
Condition: 9/10
Posted: 4 days ago

Set of 4 Gold Lion KT-66 tubes, tested Hickok 539C, used Russian quad

$90
Up for sale, a used set of 4 Gold Lion KT-66 power output tubes. Russian re-issue. 2 pair really - should have lots of life as they sound and test very strong. Only used in an audio amp w/ 375 V on pl...
Condition: 8/10
Posted: 4 days ago
Audio Asylum Trader
#Quad #TubesUSA

Unknown Unknown - Tesla 6922 blue tip tubes

$110
Matched pair blue tip 6922 tubes,sold my tube phonostage have about 20 hours on them.These are considered the holy grail of 6922 tubes you will be very happy....
Posted: 5 days ago
US Audio Mart
#TubesUSA

Pair, 2 Telefunken ECC86 tubes, tested Hickok 539C, made by Amperex, 1960s?

$32
Up for sale, two (2) used Telefunken ECC86 tubes. They test very well but gm numbers aren't given by my tester on these tubes. Though printed 'Made in Germany' they have delta codes like Dutch-made Am...
Condition: 7/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

1 Mullard Z729 G tube, EF86 mesh D getter, tested Hickok 539C. Britain

$35
Up for sale, a single used Mullard Z729 G tube, special EF86. Made in Britain, probably 1960s. Etched code incomplete: + B5D. Tested 'Good' on Hickok 539C tester at 1750 gm, 3mA current. (1000 min). B...
Condition: 7/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

1 RCA VT-229 6SL7 GT tube, tests strong Hickok 539C US 1950s, black mil-spec

$29
Up for sale, 1 used RCA VT-229 tube. Made in USA, early 1950s. Charcoal black plates. Mil-spec.Tested strong on calibrated Hickok 539C tester. (1000 min) 2300 gm, 3 mA current, code K2E. 2400 3.3 mA....
Condition: 8/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

1 Siemens RCA 6922 gold pin tube, tested strong Hickok 539C, Germany

$79
Up for sale, 1 used Siemens RCA 6922 gold pin tube. Made in Germany, 1960s but overprinted 'RCA' in orange. As you likely know, this type is among the best of the 6DJ8 variety of tubes. Tested high on...
Condition: 8/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

Pair Amperex EL84 tubes, rX3 rX4, tested Hickok 539C, Holland, 6BQ5 set of 2

$49
Up for sale, a pair (2) used Amperex EL84 6BQ5 output tubes. Made in Holland 1960s. I went through my EL84 tubes and made this pair that match fairly close by Gm and current draw. They are nearly iden...
Condition: 8/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

Lot of 8 12AU7 ECC82 Mullard Amperex Euro tubes, tested good Hickok 539C, used

$229
Up for sale, a used set of 8 ECC82 12AU7 tubes. 5 are Mullard, 2 are Philips-Amperex, 1 not sure but definitely European. They do not test as high as NOS but they show strength; none are marginal. Det...
Condition: 8/10
Posted: 5 days ago
Audio Asylum Trader
#Euro Team Audio #TubesUSA

Lot of 9 US 5687 tubes GE, RCA Tung-Sol Raytheon, tested Hickok 539, black bronze plate

$69
Up for sale, 9 used 5687-type tubes. All are made in USA, ca. 1960s, and have long 17mm plates. Similar but not identical construction. It's a mix of assorted tubes and I only keep the highest testing...
Condition: 8/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

Lot of 4 1625 tubes, VT-136 US, tested Hickok 539C, 1950s RCA KenRad NU

$32
Up for sale, an assorted lot of 4 US 1625 cap tubes. Vintage American manufacture 1940-50s. Very similar appearance with large black plates - construction varies. 7 pins, no bad corrosion. Some people...
Condition: 8/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

Pair - 2 Westinghouse 5U4 GB tubes, tested Hickok 539 1950s US, rca ge 1 NOS black

$29
Up for sale, two (2) unused Westinghouse 5U4 GB rectifier tubes. Made USA, 1950s. Large black plates. Construction equal to RCA and GE. One was placed into a guitar amp briefly - a scratch shows on th...
Condition: 9/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

1 Sylvania 8417 tube, Bogen, tested Hickok 539C, 1960s US

$44
Up for sale, 1 used Sylvania 8417 power output tube. Made in US, late 1960s. Labelled for Bogen amplifier. Pins shiny; gettering looks OK. Tests strong on calibrated Hickok 539C tester. (8200 min): 13...
Condition: 8/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

1 Amperex 8416 tube, PQ gold pins, tests strong Hickok, input or phono.

$24
Up for sale, a single (1) Amperex 8416 tube, a 12 volt tube similar to 6922 but not a direct plug-in. PQ, gold pins. I thought this might be NOS but there is evidence of handling. Used but tests like ...
Condition: 8/10
Posted: 5 days ago
Audio Asylum Trader
#TubesUSA

PrimaLuna Unknown - Like New Matched Quad Primaluna EL34 Tubes

$80
A matched quad of the great Primaluna EL34 tubes (the same tube that comes stock in the award-winning PrimaLuna amplifiers). I received these with a new Primaluna Dialogue Premium Integrated. They sou...
Posted: 5 days ago
US Audio Mart
#PrimaLuna #TubesUSA

Unknown Unknown - Like New Matched TRIO Tung-Sol KT120

$100
Like new trio of the awesome KT120s. Perfect if you need a pair and want to keep a matched spare around just in case...or if you actually need 3. These are from Upscale Audio, which means they are tho...
Condition: 10/10
Posted: 5 days ago
US Audio Mart
#TubesUSA

Quad Unknown - Like New Tightly Matched Quad KT150 Tubes

$315
This is a tightly matched quad of KT150 from Upscale Audio (who have the one of the best reputations for thorough testing and matching). These have approximately 80hrs on them. I'm letting them go onl...
Condition: 10/10
Posted: 5 days ago
US Audio Mart
#Quad #TubesUSA

Unknown Unknown - Valvo 12AU7/ ECC82 Vintage Tubes - NOS - Original boxes

$75
Valvo 12AU7/ ECC82 Vintage Tubes - NOS - Original boxes.I sold many tubes 10 to 15 years ago. Check my feedback on AUDIOGON under likecap. These are from my personal collection that I've decided to se...
Condition: 10/10
Posted: 6 days ago
US Audio Mart
#TubesUSA

Electro-Harmonix KT90EH, Cryoset Treated, Brand New Matched Quad

$75
New $189
Purchased brand new a very short time ago, but never used. Cryoset certified, all in original boxes. No Paypal fee....
Condition: 10/10
Posted: 6 days ago
Audio Asylum Trader
#Quad #TubesUSA

Unknown Unknown - APPJ Gemtune Miniwatt PA1501A tube integrated amp - Upgraded 6AD10 GE NOS Tubes

$149
New $160
This APPJ Gemtune PA1501A is the successor and upgrade of the well reviewed Miniwatt N3, which is also known as the PA0901A.It is in excellent condition (9/10) and I am the original owner. It is about...
Condition: 9/10
Posted: 6 days ago
Audio Circle
#SpeakersUSA

Sophia Electric Unknown - Matched Pair Of Sophia Electric Classic 300B Tubes

$600
I purchased these tubes new from Sofia Electric in April of 2018 and they have been installed in my Sophia Electric Model 91-01 300B mono amps since then. They very closely approximate the sound of th...
Condition: 9/10
Posted: 6 days ago
US Audio Mart
#Sophia Electric #TubesUSA

GE 211/VT-4C Pair in original boxes.

$350
A pair of new in original boxes 211/VT-4C vacuum tubes. One box is marked JAN the other US Army Signal Corps. These will be well packed in an outer box with plenty of cushioning. Recommend adding insu...
Condition: 10/10
Posted: 6 days ago
Audio Asylum Trader
#TubesUSA

Amperex 6922 Pair of Amperex PQ 6922 Gold Pin

$80
A pair of NOS Amperex PQ 6922 gold pin vacuum tubes. They have good Gm match section-to-section....
Condition: 10/10
Posted: 6 days ago
Audio Asylum Trader
#TubesUSA

Dumont 7199 Pair for Dynaco amps

$80
One pair of hard to find NOS 7199 vacuum tubes. Used in Dynaco amps among others....
Condition: 10/10
Posted: 6 days ago
Audio Asylum Trader
#TubesUSA

Amperex JAN 6922G Gold Pin

$60
A pair of Amperex JAN 6922G. They have good Gm section-to-section match....
Condition: 10/10
Posted: 6 days ago
Audio Asylum Trader
#TubesUSA

GE 211/VT-4C 5 NOS 211 vacuum tubes

$625
New unused 211 vacuum tubes. Buy 1 or all 5 for $125 each. 2 are in falling apart, possibly original boxes. I recommend shipping insurance....
Condition: 9/10
Posted: 6 days ago
Audio Asylum Trader
#TubesUSA

Quad Unknown - Genalec GEC KT88 Vacuum Tubes Matched Quad

$699
Matched quad GEC KT88 just take out of amplifier VAC Avatar Super that I sold for two weeks ago. I try to take a lot of pictures. Please see them carefully. If you have the questions, just ask. Free s...
Posted: 10 days ago
US Audio Mart
#Quad #TubesUSA

Telefunken ECC83/12AX7 Matched Pair Smooth Plates ! Very Strong !

$107
Here is a nice sounding, very strong testing, matched pair of two genuine Telefunken ECC83/12AX7 tubes. These are the legendary smooth plate type, with the molded diamond and date codes impressed on t...
Condition: 8/10
Posted: 11 days ago
Audio Asylum Trader
#TubesUSA

Telefunken ECC83/12AX7 Pair of Smooth Long Plate ! Test Strong !

$107
Here is a nice sounding, very strong testing, matched pair of genuine, Telefunken ECC83/12AX7 tubes. These are the legendary, smooth plate type, with the molded diamond and date codes impressed on the...
Condition: 8/10
Posted: 11 days ago
Audio Asylum Trader
#TubesUSA

Telefunken ECC83/12AX7 Pair of Ribbed/Ladder Long Plate ! Test Exclnt !

$110
Here is a nice sounding, strong testing, matched pair of genuine Telefunken ECC83/12AX7 tubes. These are the legendary, earlier 'ribbed' or 'ladder' plate type, with the molded diamond and date codes ...
Condition: 8/10
Posted: 11 days ago
Audio Asylum Trader
#TubesUSA

Telefunken ECC83/12AX7 Pair of Ribbed/Ladder Long Plate ! Test VG !

$107
Here is a nice sounding, strong testing, matched pair of genuine Telefunken ECC83/12AX7 tubes. These are the legendary, earlier 'ribbed' or 'ladder' plate type, with the molded diamond and date codes ...
Condition: 8/10
Posted: 12 days ago
Audio Asylum Trader
#TubesUSA

AVT 274A Solid Plate Rectifier

$150
Up for sale is a pair of AVT 274A rectifier tubes. I bought these new 2003 and they were used interchangeably with a pair of NOS RCA's in my now gone (but fondly remembered) Jeff Korneff 45 monos'. so...
Condition: 7/10
Posted: 12 days ago
Audio Asylum Trader
#TubesUSA

Music Reference RM-200 MK 1 with extra tubes

$1700
New $4,500
For Sale>Music Reference RM200 MK1 with extra output tubes. Amp is in very nice condition with minor swirl marks on top of chrome transformer cover. Cabinet is in excellent condition. Works fine and p...
Condition: 7/10
Posted: 13 days ago
Audio Asylum Trader
#Tube AmplifiersUSA

Unknown Unknown - Music Reference RM200 MK1 with extra tubes

$1700
For Sale> Music Reference RM200 MK1 amp in very good condition. Appearance wise cabinet like new and only has minor swirling marks on top of chrome transformer cover. Included with amp Ram Labs KT88 t...
Condition: 7/10
Posted: 13 days ago
US Audio Mart
#TubeUSA

Unknown Unknown - RCA 5965 tubes (12at7 substitutes) pair

$30
A pair of RCA 5965: Were NIB. I tried them on an amp that was set up for 12au7s and it didn't sound right - my mistake. I removed them after about an hour or so. In original RCA boxes....
Condition: 9/10
Posted: 14 days ago
US Audio Mart
#TubesUSA

Western Electric Unknown - Western Electric 300B N.O.S. tubes unsued, With boxes mid-1950's test N.O.S

$4490
Pair of 1950's N.O.S. Western Electric 300B vacuum tubes Tested N.O.S....
Condition: 9/10
Posted: 15 days ago
US Audio Mart
#Western Electric #TubesUSA

Western Electric Unknown - Western Electric 300B N.O.S. tubes unsued, With boxes and all paperwork made in 2005

$1790
This is a pair of WesternElectric 300B re-issued tubes. N.O.S....
Posted: 16 days ago
US Audio Mart
#Western Electric #TubesUSA

Unknown Unknown - MHDT Pagoda DAC + Tubes

$900
For Sale: MHDT Pagoda DAC. Top of the line MHDT DAC. Very smooth and detailed with an awesome sound stage and presentation....
Posted: 17 days ago
US Audio Mart
#DACsUSA

Unknown Unknown - 6N6P/6N30P Matched Pair FOTON NOS MILITARY (Close to 6N30P-DR)

$34
From Russia with love tubes from the 1960 and 1970s. I have 3 matched pairs never used and imported from Russia. These were my back-up tunes for an amp I sold recently. $34 per pair plus shipping and ...
Condition: 10/10
Posted: 17 days ago
US Audio Mart
#TubesUSA

Unknown Unknown - 6N1P-VI NOS Tube Pair (6N1P-VI = ECC88 = 6DJ8 tube. Double triode)

$20
From Russia with love. I have three pairs of these rare military unused tubes made in the 1960s at the Voskhod factory. They have the rocket logo printed on them. These were my back tubes for an amp I...
Condition: 10/10
Posted: 17 days ago
US Audio Mart
#TubesUSA

Mullard CV4003 / 12AU7 Pair Vintage NOS tubes from Upscale Audio

$175
These are from Upscale Audio, platinum grade with cryogenic treatment, I have 2 pair. Excellent tubes.They have super low hours, shipping to lower 48, 5 bucks. Others please ask.Selling for 175 a pair...
Condition: 9/10
Posted: 20 days ago
Audio Asylum Trader
#TubesUSA
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