tube
  1. Sennheiser

    August in Sennheiser History...

    Hello Head-Fi! Our 75th Anniversary has offered us an opportunity to revisit key Sennheiser moments. This month in Sennheiser history is particularly special as it was 29 years ago that the original Orpheus was released. If you’ve heard either Sennheiser electrostatic headphone, feel...
  2. DeviousEnigma

    Audio Spectrum IN-9 Nixielyzer

    This looks really cool and it’s currently on Indiegogo with only four days left. I hope it gets funded so I thought I’d share it here.
  3. T

    How do I buy cheap NOS tubes?

    Why do tube vendors get angry or ghost when asking them about brands they have in stock for cheap tube types? It's not like I am asking for detailed measurements or something like that.
  4. pbfreak422

    Best "Warm" Tubes for Lyr 2?

    I just picked up some Focal Utopias and plan on using my Schiit Lyr 2 amp for a while, so I'm looking to upgrade my stock tubes in there until I have enough to upgrade to my next amp. I know there are some Lyr 2 tube comparison threads out there, which I have read, but it seems like those focus...
  5. Dyl2525

    [SOLD] Little Dot MK2 Rev 3 with extra tubes

    TimeStamp Hello I am looking to currently sell my little dot mk2. I purchased this amp thinking I would enjoy tubes and after using it i found out i prefer solidstate. Anyway extra included with the amp will be a pair of Riverstone Audio - Tested/Matched Pair (2 Tubes) 7-Pin GE JAN 5654W tubes...
  6. 808cityill

    SOLD: Sophia Electric 274B Aqua

    Up for sale is a Sophia Electric 274B Aqua. I purchased this directly from Sophia Electric and put about 150hrs on it. I no longer have the DNA Stratus so this is up for sale. This tube can be used sometimes as a replacement for a 5U4G, depending on the circuit. $125 plus shipping and PayPal...
  7. Tuba - Vacuum Tube Headphone Amplifier

    Tuba - Vacuum Tube Headphone Amplifier

    Tuba - Vacuum Tube Headphone Amplifier The TUBA is a world-class vacuum tube headphone amplifier designed to operate with either low impedance (Grado) or high impedance (Sennheiser) headphones. The power stage is a single-ended, zero-feedback, parafeed EL84 triode into an impedance matching...
  8. LoryWiv

    Sold: Sylvania 6SN7WGT, Pair

    More tubes than I can use, so the following are for sale: Sylvania 6SN7WGT Matched Pair, $110 Thomson 6080 Matched Pair, $60 Genalex KT150 Matched Pair, $85 (Adapters to 6AS7 socket available, $20) Reasonable offers welcomed. I'll cover CONUS shipping, PayPal fee. Let me know if you need...
  9. Claus1100xx

    SOLD SinglePower PPX with Slam Upgrade + Many Tubes

    I have been out of the headphone game for a while now. Kids will do this to you! Found my beloved Headphone Amp and it is time to part with it. Here is a SinglePower PPX with Slam Upgrade. Sounds silky smooth and comes with many different tubes to play around and dial in the sound signature...
  10. metric1

    Sold: Very Rare Telefunken E88CC (1) / 6922 Gold Pin (matched pair)

    This is a matched pair of Telefunken Gold Pin E88 CC 1 - which are exceedingly rare now. Purchased from a private collector (NOS) for use with my Pathos Aurium. They have less than 100 hours on them. I've now sold my Pathos, so letting these go as well. Upscale Audio retail these for $700 for...
  11. LoryWiv

    Closed: Tung-Sol KT150 x 2

    The KT150 are new production, purchased brand new just 1 month ago and very lightly used. I scored some pricey tubes and need to recoup a bit, but would like to see someone get use out of these. They are powerful, great sounding tubes. Asking $90 for the pair. I'll cover PayPal fees and CONUS...
  12. LoryWiv

    Sold: Power Tube Pairs - Genalex KT88 & KT77

    1. Not selling, may re-list at a later date. Sorry for any inconvenience. Tung-Sol 7236 (6AS7G / 5998 / 6080 compatible). Metal base, excellent condition. Date code 6213, I believe indicates manufactured 13th week of 1962. No boxes, will pack securely. Price for pair is $120 2. SOLD: Genalex...
  13. nxxo

    ⭐️Philips ECC88 6DJ8 matched pair NOS⭐️

    Philips ECC88 matched pair NOS, 8 shot revolver getter, no static, date code: GAE Delta1J3 1963 very great pair of tube, good bass, solid middle. Great Combo for you LP...solid pair Made in Holland Paypal and shipping include
  14. LoryWiv

    SOLD: RCA 6AS7G, Tung Sol 6SN7 GTB, Tung Sol 7581A

    Thinning the heard. The Tung Sol 5998's pictured below are sold. Remaining three tube pairs are: RCA 6AS7G x 2. Seller / date code information indicates these are from 1956 and 1959, The measurements shown in the photo are per ebay seller I purchased them from and I have only added 10-15 hours...
  15. Feliks Euforia Tube Amplifier (6SN7 + 6N13S)

    Feliks Euforia Tube Amplifier (6SN7 + 6N13S)

    Technical specification - Model 2019 Input Impedance: 100 kOhm Frequency response: 8 Hz - 75 Khz +/- 3 dB (300 ohm) Power output: 250mW THD: 0.4 % (300 ohm, 20 mW) Supported headphones impedance: 32 - 600 ohm including planar magnetics Premium PsVane CV-181 Mk2 “Gold” /or "Silver" PsVane 6SN7...
  16. JulienM

    SOLD: Schiit Saga Pre-Amp - $275

    SOLD I’ve had this little pre-amp since March 2017, bought new directly from Schiit. The stock tube is a Russian NOS. I’m also including 2 other tube options: The Schiit LISST - a solid state tube replacement. A current production Tung-Sol 6SN7GTB from Upscale Audio - “Platinum Grade” and...
  17. Peter Z

    Chi-Fi Tube Amp: RFTLYS EA1A

    Reeeal sexy, ain't it? I don't have access to it right now since it's in my host family's garage (social distancing!), so I'm going to post some stock pictures. Edit: the first picture was taken with my camera so the file was too big and wasn't showing. Changed it to a slightly compressed version.
  18. ModMax

    [SOLD]: Schiit Lyr 3 (LISST + 2 Tubes)

    I have a very lightly used Schiit Lyr 3 amplifier. Sale includes: Lyr 3 amp LISST tube Tung-Sol 6SN7 NOS 6N8S (from Schiit) Schiit PYST RCA Interconnect Power cable Original Schiit packaging There are a few small “manufacturing” blemishes that have been highlighted in the pics. I didn’t...
  19. Velozity

    UPDATED: Tung-Sol 7236 Vacuum Tubes for GOTL, Lyr 3, IHA-1, Darkvoice, etc.

    *UPDATED 9/9/20. See post #12 for pictures of 7236, 6J5GT, L63, and 6C4 tubes. I've changed socket configurations so I don't need these tubes anymore. All have been auditioned in my amps, and most were tested as either strong or NOS with a tester prior to me purchasing them. $5 flat...
  20. SLC1966

    *SOLD* Schiit Lyr 2 + extra tubes

    I purchased last year from a fellow Head-fier. Comes with GE 5670 tubes with adapter as pictured. These types of tubes are my preferred. Will ship with original tubes also. Comes with power chord as pictured. The price is lower than normal because I do not have original packaging and there is a...
  21. Phatlab Chimera

    Phatlab Chimera

    Frequency Response 10 Hz – 100 kHz Output power (30 ohm) 300 mW + 300 mW (3.5φ) 1000 mW + 1000 mW (4.4φ) Headphone impedance 30 ohm – 600 ohm Gain Setting Hi: 14dB (3.5φ), 20dB (4.4φ) Lo: 6dB (3.5φ), 12dB (4.4φ) Max. S/N Ratio >110 dB Power supply 5V/1A via micro USB port Operation...
  22. TommyFro

    black Schiit Asgard 2 and Saga w/ tube options

    Looking to clear some of the gear I don't need or use. Prices are shipped CONUS https://imgur.com/a/NfV0dbm SOLDSchiit Asgard 2(black):$110 Original packaging and in great shape, black colorway looks great. Hard to beat for this price SOLDrare black Schiit Saga: $300 More of a feeler post as...
  23. altie

    Stax SRM-T1 for sale

    This posting is for a very good used condition SRM-T1 tube electrostatic amplifier with Stax "pro" and "normal" bias outputs. Sale includes a good condition original box, serial number CO1171 matching the amp. Asking $550, Paypal preferred. I'm selling it because my beat up old rehabbed...
  24. TommyFro

    SOLD Schiit Vali 2 (x2) with tube options

    https://imgur.com/a/HGYXP88 SOLD Right one: $90 Shipped: Has a few scuffs on the corners, all works as it should with original tube. No original packaging. SOLD Left one: $100 shipped: Very good condition, was purchased b-stock from Schiit(scratched volume knob). Original packaging and tube...
  25. M

    FS: Philips Miniwatt E88CC Vacuum Tubes Gold Pin

    Vintage Philips Miniwatt E88CC Vacuum Tubes Gold Pins Special Quality 6922. Shipped with USPS First Class Package. It looks very good, way beyond my asking price, which is different from many used Phillips E88cc tubes with deformed, and faded pins sold currently on eBay. If you want to maximize...
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