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  1. #1
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    Lampizator alternative Rectifier tube (5U4G)

    I think my Lampi Golden Atlantic Plus Dac’s rectifier died on me. Can’t find any same tube ( Kr Audio 5U4G) around. What would be the good alternative tube I can use ? Any recommendations?




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  2. #2
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    Re: Lampizator alternative Rectifier tube (5U4G)

    viking acoustics berlin r mk2 | air tight atc-5 + atm-300r | clearaudio concept + satisty + v2 MM | t+a dac8 dsd + kanjiroba diy transport + roon rock
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  3. #3

    Re: Lampizator alternative Rectifier tube (5U4G)

    Takatsuki 274B is the best. Parts Connexion is the place to get one. Elrogs are great but they have a history of blowing up in Lampis. My 300b did. I read that the failure rate is lower since new ownership.

  4. #4
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Paul, back in my Lampi days, I tried a variety of rectifier tubs: WE 422a for me was the sleeper, the WE274b was the king. The Tak 274b was very good too. I have some other rare rectifier tubes that also worked out well (in the video I sent you last night).

    The Tak’s are new and very very good sounding. You may want to even try the Tak 300b’s if your Lampi takes them.


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  5. #5
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Quote Originally Posted by BruceLet View Post
    Takatsuki 274B is the best. Parts Connexion is the place to get one. Elrogs are great but they have a history of blowing up in Lampis. My 300b did. I read that the failure rate is lower since new ownership.
    i would have no hesitation using any elrog tube manufactured under the ownership of thomas mayer (new owner since 2016).

    assuming compatibility with your lampi, i agree the tak 274b would also be a top choice. i have tak 300b tubes which are excellent in every way.
    viking acoustics berlin r mk2 | air tight atc-5 + atm-300r | clearaudio concept + satisty + v2 MM | t+a dac8 dsd + kanjiroba diy transport + roon rock
    alp-tone audio analog cables | core audio designs plyKraft 3L | hifi racks ltd podium t5-iii

  6. #6
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Psvane acme 274B or EML 274B.

  7. #7

    Re: Lampizator alternative Rectifier tube (5U4G)

    If you don't feel like breaking the bank, I just bought a Sophia Electric Aqua 274b and am very pleased with it in my Lampi.
    Speakers: Sonus Faber Extrema, Sonus Faber Elipsa, Franco Serblin Accordo, Quad ESL 57, Reference 3A Reflector, Pioneer TAD S-1ex, S-2ex, S-7ex
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  8. #8
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Paul

    The easiest thing for you might be to contact Chris's people at Parts Connexion there and see what all they have. They are listing at least the Elrog and Tak on their website and likely have other NOS 5UG's or even a 5AS4.
    Main - JVC QL-Y7/Denon DL-301 Mk II, Gold Note PH-10, Jays CDT3 Mk3 , Auralic Aries G1, Holo May KTE, Supratek Chardonnay, Kinki Studio EX-M7, Verity Audio Otello, (2) Rythmik F12SE, Audio Envy IC, SC & PC's, Triode Wire Lab PC's, Inakustik USB and I2S, PS Audio Stellar P3, PI Audio Uberbuss, Timbernation rack

    Family Room - Oppo UDP-203, Auralic Aries, Aqua La Voce S3, Kinki Studio EX-M1+, Nola KO, (2) Rythmik F-12G, Wireworld SC & IC's, Neotech PC's, SurgeX SA-1810

    Greenville, SC- Jays CDT2 Mk 3, Auralic Aries G1, Holo Spring 3 KTE, Don Sachs Model 2, Van Alstine Vision SET 400, Rosso Fiorentino Volterra 2, (2) RSL Speedwoofers, iFi Audio Power Station, Wireworld IC's, Inakustik USB and I2s, Triode Wire Lab SC, Triode Wire Lab PC's, Furutech NCF Clear Line.

  9. #9
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Quote Originally Posted by RDSChicago View Post
    If you don't feel like breaking the bank, I just bought a Sophia Electric Aqua 274b and am very pleased with it in my Lampi.
    Thank you. I was just looking at the site. Very nice looking tube too !
    Paul

  10. #10
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Quote Originally Posted by Jack View Post
    Paul

    The easiest thing for you might be to contact Chris's people at Parts Connexion there and see what all they have. They are listing at least the Elrog and Tak on their website and likely have other NOS 5UG's or even a 5AS4.
    Thinking about the Tak too.. but its pricy LOL
    Paul

  11. #11
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Might also want to contact thetubestore.com in Hamilton. They have apparently a selection of NOS 5U4's you can use to get you by until you decide on one of the more expensive ones.

    NOS 5U4G / 5AS4 Rectifier Tubes - www.thetubestore.com
    Main - JVC QL-Y7/Denon DL-301 Mk II, Gold Note PH-10, Jays CDT3 Mk3 , Auralic Aries G1, Holo May KTE, Supratek Chardonnay, Kinki Studio EX-M7, Verity Audio Otello, (2) Rythmik F12SE, Audio Envy IC, SC & PC's, Triode Wire Lab PC's, Inakustik USB and I2S, PS Audio Stellar P3, PI Audio Uberbuss, Timbernation rack

    Family Room - Oppo UDP-203, Auralic Aries, Aqua La Voce S3, Kinki Studio EX-M1+, Nola KO, (2) Rythmik F-12G, Wireworld SC & IC's, Neotech PC's, SurgeX SA-1810

    Greenville, SC- Jays CDT2 Mk 3, Auralic Aries G1, Holo Spring 3 KTE, Don Sachs Model 2, Van Alstine Vision SET 400, Rosso Fiorentino Volterra 2, (2) RSL Speedwoofers, iFi Audio Power Station, Wireworld IC's, Inakustik USB and I2s, Triode Wire Lab SC, Triode Wire Lab PC's, Furutech NCF Clear Line.

  12. #12
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    Lampizator alternative Rectifier tube (5U4G)

    So I have been in contact with Lampizator and KR audio by Facebook messenger. So we will see who can get me the best answer. However either way it will take a long time to receive so I was checking the local audio market and grabbed the Tung Sol 5U4GB USA NOS for now.

    Now, the funny thing is I can NOT hear the difference vs expensive KR Audio ! Hmmm.... Am I deaf??? Wow.

    So how much this rectifier affect the sounds on my DAC? Hmmm

    Paul

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    Re: Lampizator alternative Rectifier tube (5U4G)

    Quote Originally Posted by RDSChicago View Post
    If you don't feel like breaking the bank, I just bought a Sophia Electric Aqua 274b and am very pleased with it in my Lampi.
    I have this tube as well (based on some feedback from WTF) but my experience is exactly opposite. This is the worst tube in my collection of at least 10 different 5v rectifiers. They sounded worst than the stock Russian and unless my tube is defective, they sounded harsh and forward in B3. Some users also had the same feedback. I think Sophia no longer has the quality as it used to have once.

  14. #14
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    Lampizator alternative Rectifier tube (5U4G)

    Quote Originally Posted by Devg View Post
    I have this tube as well (based on some feedback from WTF) but my experience is exactly opposite. This is the worst tube in my collection of at least 10 different 5v rectifiers. They sounded worst than the stock Russian and unless my tube is defective, they sounded harsh and forward in B3. Some users also had the same feedback. I think Sophia no longer has the quality as it used to have once.
    Hmmm interesting... I guess we hear all differently.

    Thanks for sharing


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  15. #15
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Paul

    They don't make rectifiers like they use to and that applies to all of them and not just the 5AR4's which everybody knows. For other than the 5AR4's I have always stuck with the vintage rectifiers from Sylvania, Tung-Sol, RCA and even Raytheon. They will sound good and not just "shit the bed" like the new production stuff. There is a guy in Toronto on Ebay that has been selling since the 90's that has a pretty good haul of 5U4 variants.

    https://www.ebay.com/sch/i.html?_dmd...oac=1&_nkw=5u4

    The Tung-Sol's were the best of the 5U4's and the RCA's of the 5AS4's to me.
    Main - JVC QL-Y7/Denon DL-301 Mk II, Gold Note PH-10, Jays CDT3 Mk3 , Auralic Aries G1, Holo May KTE, Supratek Chardonnay, Kinki Studio EX-M7, Verity Audio Otello, (2) Rythmik F12SE, Audio Envy IC, SC & PC's, Triode Wire Lab PC's, Inakustik USB and I2S, PS Audio Stellar P3, PI Audio Uberbuss, Timbernation rack

    Family Room - Oppo UDP-203, Auralic Aries, Aqua La Voce S3, Kinki Studio EX-M1+, Nola KO, (2) Rythmik F-12G, Wireworld SC & IC's, Neotech PC's, SurgeX SA-1810

    Greenville, SC- Jays CDT2 Mk 3, Auralic Aries G1, Holo Spring 3 KTE, Don Sachs Model 2, Van Alstine Vision SET 400, Rosso Fiorentino Volterra 2, (2) RSL Speedwoofers, iFi Audio Power Station, Wireworld IC's, Inakustik USB and I2s, Triode Wire Lab SC, Triode Wire Lab PC's, Furutech NCF Clear Line.

  16. #16
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Quote Originally Posted by Jack View Post
    Paul

    They don't make rectifiers like they use to and that applies to all of them and not just the 5AR4's which everybody knows. For other than the 5AR4's I have always stuck with the vintage rectifiers from Sylvania, Tung-Sol, RCA and even Raytheon. They will sound good and not just "shit the bed" like the new production stuff. There is a guy in Toronto on Ebay that has been selling since the 90's that has a pretty good haul of 5U4 variants.

    https://www.ebay.com/sch/i.html?_dmd...oac=1&_nkw=5u4

    The Tung-Sol's were the best of the 5U4's and the RCA's of the 5AS4's to me.
    Jack. Thanks for the link. I didn't know about this seller. A lot of stuff

    Also, that's good to hear about the Tung-Sol. Seriously I can NOT hear the difference. This wasn't expected


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    Paul

  17. #17
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Jack. Now you got me curious. From your link, I like to buy some backups. What would you recommend?

    Thanks in advance


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  18. #18
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    Re: Lampizator alternative Rectifier tube (5U4G)

    Paul

    From what I see I would try to get one of the new RCA 5U4's, the new Raytheon and the new Phillips 5AS4 which was probably made in the Mullard tooled Matsushita plant. Those NOS rectifiers could likely outlast you and the Lampi. Since he is local to you might work out a meet instead of shipping across town.
    Main - JVC QL-Y7/Denon DL-301 Mk II, Gold Note PH-10, Jays CDT3 Mk3 , Auralic Aries G1, Holo May KTE, Supratek Chardonnay, Kinki Studio EX-M7, Verity Audio Otello, (2) Rythmik F12SE, Audio Envy IC, SC & PC's, Triode Wire Lab PC's, Inakustik USB and I2S, PS Audio Stellar P3, PI Audio Uberbuss, Timbernation rack

    Family Room - Oppo UDP-203, Auralic Aries, Aqua La Voce S3, Kinki Studio EX-M1+, Nola KO, (2) Rythmik F-12G, Wireworld SC & IC's, Neotech PC's, SurgeX SA-1810

    Greenville, SC- Jays CDT2 Mk 3, Auralic Aries G1, Holo Spring 3 KTE, Don Sachs Model 2, Van Alstine Vision SET 400, Rosso Fiorentino Volterra 2, (2) RSL Speedwoofers, iFi Audio Power Station, Wireworld IC's, Inakustik USB and I2s, Triode Wire Lab SC, Triode Wire Lab PC's, Furutech NCF Clear Line.

  19. #19

    Re: Lampizator alternative Rectifier tube (5U4G)

    Quote Originally Posted by Paul View Post
    I think my Lampi Golden Atlantic Plus Dac’s rectifier died on me. Can’t find any same tube ( Kr Audio 5U4G) around. What would be the good alternative tube I can use ? Any recommendations?




    Sent from my iPhone using Tapatalk

    I have a Lampi/KR Audio 5U4G I'm about to list for sale. Bought it in 2016 from Fred for use in my Big 7, but ended up preferring a U52 rectifier with my Tak 300B tubes in that DAC. Anyway, it has very little hours on it, so virtually brand new, and stored in original packaging in a closet for all these years. Let me know if you might be interested.

    Ben
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Lampizator alternative Rectifier tube (5U4G)

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