Iec 6DJ8 vs? Is this a Mullard?

erniejadeerniejade Posts: 4,604
edited January 26 in 2 Channel Audio
2zmhnd97d37f.jpg
Is this a Mullard? Great Britain made.

Anyone know how this tube is against a sylvania 6922 ?
Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
USB helper: w4s Recovery
Living Room Teac AI-3000, LSI25, SDA 3.1TL, Grant Fidelity Tube Dac 11
Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

Comments

  • erniejadeerniejade Posts: 4,604
    s6ae27sqlvhc.jpg


    6922 pic
    Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
    USB helper: w4s Recovery
    Living Room Teac AI-3000, LSI25, SDA 3.1TL, Grant Fidelity Tube Dac 11
    Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

  • erniejadeerniejade Posts: 4,604
    Also is this realistic the same as the IEC 6dj8? Looks the same to me. 75atya1px5wj.jpg
    Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
    USB helper: w4s Recovery
    Living Room Teac AI-3000, LSI25, SDA 3.1TL, Grant Fidelity Tube Dac 11
    Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

  • erniejadeerniejade Posts: 4,604
    Here is the story. I have a grant fidelity tube dac 11. It has a nice sylvania 6922 in it but. I have a few 6DJ8 tubes in my small stash to roll. Are the IEC and the Realistic the same tube and are they actually Mullard? If they are the same, before i install the tube dac 11, witch tube would you prefer and why?

    Yes i know i can just keep going between them but, once it's in place, it's not that easy getting it back out to swap so, i would like some opinions please.
    Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
    USB helper: w4s Recovery
    Living Room Teac AI-3000, LSI25, SDA 3.1TL, Grant Fidelity Tube Dac 11
    Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

  • heiney9heiney9 Posts: 24,015
    I don't know a lot about 6DJ8's and their construction since I don't have gear that uses them.

    IEC were mostly rebranded Mullards in the 12Axx family, but really they could be anything. Do you know for sure Mullard even made their own 6DJ8/6922? And just didn't relabel someone else's.

    I don't recall w/o doing some research if this was the case.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • erniejadeerniejade Posts: 4,604
    I need to google it. When I got them a while ago. I was told they were Mullard but i do not know for sure so i thought i would ask.
    Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
    USB helper: w4s Recovery
    Living Room Teac AI-3000, LSI25, SDA 3.1TL, Grant Fidelity Tube Dac 11
    Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

  • heiney9heiney9 Posts: 24,015
    Mullards should typically have etched codes too.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • heiney9heiney9 Posts: 24,015
    It appears they did, here are some photo's and you can see part of the codes.

    http://www.tubemongerlib.com/gallery2/v/6DJ8/?g2_page=6

    I also had a look at Tubeworld and he lists Mullards as well.

    H9
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • heiney9heiney9 Posts: 24,015
    Top line of etched code is GAx with x being the change number.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30 | EE Avant Pre | EE Mini Max Plus DAC | MIT Shotgun S3 | MIT Z P/C's | updated SDA 1C| SQ Box Touch/Welbourne Labs P/S- Tubes add soul!
  • ThortonThorton Posts: 1,170
    erniejade wrote: »
    Yes i know i can just keep going between them but, once it's in place, it's not that easy getting it back out to swap so, i would like some opinions please.

    Ship them to me and I'll let you know how they sound versus Amperex 7308's! B)

    Probably picking up AXPONA tickets this weekend. It will be here before you know it. Hope to see you and your wife again!
    _____________________________________________________________________________________________
    Source: Roon via ethernet to DAC interface
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    Pre/Pro: Marantz AV8805
    Tube Preamp Buffer: Tortuga TPB.V1
    Amp1: W4S MC-5, AMP2: W4S MMC-7
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  • erniejadeerniejade Posts: 4,604
    I already got a 3 day pass for me. Brig wants to go but shes not positive if its her Saturday to work. If it is, she can join us for dinner since we work 7 minutes away.
    Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
    USB helper: w4s Recovery
    Living Room Teac AI-3000, LSI25, SDA 3.1TL, Grant Fidelity Tube Dac 11
    Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

  • erniejadeerniejade Posts: 4,604
    It seems like both are mullard from the ,60's from what i can tell. I think i will try the realistic gold pin version first in the tube dac.
    Lumin D1,Wireworld Silver Eclipse, KEF LS50 Wireless, Velodyne SPL1200, Technics 1200, Denon DL160, Jolida D9,
    USB helper: w4s Recovery
    Living Room Teac AI-3000, LSI25, SDA 3.1TL, Grant Fidelity Tube Dac 11
    Have but haven't used in a while: LH Labs VI Dac, Cayin SCD50T

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