vacuum tube
  1. ben8ding

    Tube Storage?

    Hello! As I've started to roll tubes I've noticed that storing tubes is a bit of a challenge. I know vendors usually try and ship the tubes in a box but some of the tubes that came with my amp along with some EBay vendors seem to just toss it in foam or bubble wrap and send it like that...
  2. Apos Audio

    Introducing the Apos Ray Vacuum Tubes: Rekindle Your Love for Rich, Warm Sound

    Hi all, We're excited to share the launch of a new product we've been working on at Apos: The Apos Ray Vacuum Tubes. These are not your regular tubes–they’re brand new, hand-selected, and tested to meet our rigorous quality standards, unlike the unpredictable quality of the New Old Stock (NOS)...
  3. I

    Can someone help me with the lettering on these 6080WC tubes?

  4. mg2c

    Mind helping with choosing tubes for my triode amp?

    Hi I am using a Triode amp (Unison Triode 20) to drive my Stax earphones. It uses NOS German EL34 tubes in the power stage. These are still in very good shape, but two tubes in the "preamp stage" are defective and need to be replaced. This stage uses a combination of 1x ECC83 and 2x ECC82 - as...
  5. AmericaHiFi

    iFi Micro iTube2

    Hello Head-Fi Members, This new thread is specifically for the iFi iTube2. On the rare occasion that we receive stock of these units (USED), we will create a post in this thread... December 1st, 2021: We have just received stock of the hard to find iFi iTube2 Buffer by iFi Audio. In the past...
  6. 5

    Is it a good idea to leave my tube amp on, or turn it off when I'm not around?

    I have a Douk Audio P1 Tube amplifier. I turn off the amp at night, but leave it on all day, even though I'm not at the computer. Should I turn off the amp when I leave the computer, or should I leave them on? I ask this because vacuum tubes have a lifespan of around 5,000 hours, and if the...
  7. tubebuyer2020

    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.
  8. OVC, World's First Vacuum Tube Headphone

    OVC, World's First Vacuum Tube Headphone

    Incredible Sounds Tube headphone sounds better is because of the euphonic distortions they added to the music. It acoustically optimized to produce the smoothest, most extended frequency response for an immersive listening experience. Built-in Vacuum Tube * Tube miniaturization: Each...
    • Dobrescu George
    • Head Gear item
    • amplified cables headphones ovc self powered headphones tube vacuum tube wired headphones
    • Comments: 3
    • Reviews: 1
    • Category: Headphones
  9. attmci

    Vacuum tube rejuvenation

    This is a interesting patent filed by John J Schaedler, Dwayn A Shipps in 1953. They stated that "the most common reasons for failure of vacuum tubes as a result of ordinary use are inter-element shorts and lowered cathode emission capabilities. As a tube is used, the active coating on the...
  10. aftalifex

    Little Dot MKIV failure

    Hey, not sure if this is the correct place to post but I don't see any obvious better places to post. My little dot within the last month started crackling in the right ear as the amp turned on and warmed up. Shortly after, the right ear became almost completely off. The left side worked fine...
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