Recent content by myphone
  1. myphone

    2359glenn | studio

    I have one similar to the left, labeled as Brimar 5R4 (Foreign). Saw a website describes it as GEC Marconi 5R4
  2. myphone

    2359glenn | studio

    Oh, thank you, Gibosi. I have read the spec sheet many time. Some how missed it.
  3. myphone

    2359glenn | studio

    Needing help figuring out WE 422a rectifier tube voltage drop. Recently I acquired a WE 422a. It tests well and functions well in a 421a amp. I have read 422a is a direct replacement of 5u4, but could find voltage drop information on its spec sheet. 5U4G has voltage drop of 44. Thank you
  4. myphone

    Feliks-Audio EUFORIA - A Wolf in "Sheep's" Clothing...

    I have used both 7236 and Mullard 6080 in Euforia. They are at oppose ends of sound signature: 7236 is fast and clear, Mullard 6080 is rich and warm.
  5. myphone

    Feliks-Audio EUFORIA - A Wolf in "Sheep's" Clothing...

    CF, thank you for sharing your experience of standard Euforia and AE. Have been wondering about whether to upgrade to AE. I have been using standard Euforia since 2017, using 6080/6AS7/ 6SN7/12SN7. All my phones are high impedance (HD800, T1, Audio-Technica). Standard Euforia is still sonically...
  6. myphone

    Feliks-Audio EUFORIA - A Wolf in "Sheep's" Clothing...

    There is a review of Feliks Arioso 300 B SET amp (US$6466) in August 2021 Stereophile magazine. The reviewer Herb Reichert quite likes it. It is an integrate speaker amp. No headphone function.
  7. myphone

    2359glenn | studio

    Hello UT, have been reading you guys comments with great interest.
  8. myphone

    2359glenn | studio

    I don't have GOTL. I have many TS 5998 including several clear top (1950 - 1960's) and WE 421a (1950, 1960, 1970, and 1980's) Clear top 5998 structurally is similar to same period WE 421a (smaller tail wire than 421), and sounds similar to 421a (a bit less bloom and stage) used in OTL amp. They...
  9. myphone

    Feliks-Audio EUFORIA - A Wolf in "Sheep's" Clothing...

    CF, could you show some pictures of internal structure of El 11 Mesh plate Valvo's? I have several Valvo EL11s that have different internal structures. Curious to know what MESH plate looks like. Thanks
  10. myphone

    Feliks Audio Elise Impressions Thread – a New Start (please read first post for summary)

    Have been lucky with 5998 and 6AS7/6080 tubes in DV 336 (since 2005) and Eufornia (since 2017). All have been running smoothly. I conditioned all tubes with heater on only for at least 3 days before use, a trick learned from "Atma-sphere OTL amp" 20 years ago. AS amps use many 6AS7 tubes. One...
  11. myphone

    Monolith by Monoprice Tube Headphone Amplifier with ESS Sabre DAC (29511)

    Bought the amp during after-Thanksgiving sale ($329). Have been running for a week. Very nice platform. No noise at all, with original tubes or NOS tubes. All preliminary listening was done with NOS tubes, GE 5670 driver tubes and various power tubes. The amp could easily drive various...
  12. myphone

    Feliks-Audio EUFORIA - A Wolf in "Sheep's" Clothing...

    Agree, lighter sounding GEC 6080s work very well with T1 and HD650. Richer sounding GEC 6AS7s (with some neutral drivers TSRP/Sylvania 6SN7WGT) match HD800 and HD600 heavenly, especially for small scale string music. Recently, i have been listening quite a bit of 421a based amp (Fi 421a amp...
  13. myphone

    2359glenn | studio

    Yes, early GTs/VT231 (before 1953) have bottom getter, including bad boy. The only early top getter tubes i have seen are W's (6SN7W or 6SN7WGT). There are two types of GTAs (3 holes and 5 holes). I have not seen 3 hole GTB yet.
  14. myphone

    2359glenn | studio

    These are later year GT/GTA/GTB tubes. There are 5 holes. Earlier ones have either 2 holes or 3 holes (1952, badboy).
  15. myphone

    For 6AS7G tube rollers here .....

    Gibosi, I have a pair, did brief listening. Sound was similar to $10 regular Raytheon 6080. I also have Raytheon 6080 WA, WB and WC, they look the same.
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