need info on this nos tube

marvda1
marvda1 Posts: 4,901
edited September 2006 in 2 Channel Audio
Musical Design/musical Concepts offers a nos 6922 tube vintage 1960 stamped with the National Brand from Japan manufactured by Matsuishita(spelling) i believe. it retails for $98 for a matched pair. thinking about getting it for my dodd elp. if anyone knows anything about it all info would help.
Amplifiers: Norma IPA 140, MasterSound Compact 845, Ayre v6xe, Consonance Cyber 800
Preamp: deHavilland Ultraverve 3
Dac: Sonnet Morpheus 2, Musical Paradise mp-d2 mkIII
Transport: Jay's Audio CDT2 mk2, Lumin U1 mini
Speakers: Rosso Fiorentino Volterra II
Speaker Cables: Crystal Clear Magnum Opus 2, Organic Audio Organic Reference 2
Interconnects: Crystal Clear Magnum Opus 2, Argento Organic Reference 2, Argento Organic 2
Power Cables: Argento Organic Reference, Synergistic Research Foundation 10 and 12 ga.
Digital cables: Crystal Clear Magnum Opus 2 bnc, Tellurium Q aes, Silnote Audio Poseidon Signature 2 bnc
Puritan PSM156
Post edited by marvda1 on
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Comments

  • BlueMDPicker
    BlueMDPicker Posts: 7,569
    edited September 2006
    I've used the National branded rectifiers (5AR4/GZ34) in several applications, and they are stellar--also, highly sought after. No experience with their 6922/6DJ8s in music reproduction gear, but in the front end of Fender guitar amps the Mitsus are excellent.

    I might suggest you research the Amperex 7308 gold pin 6922/6DJ8 equivalent. The USN/CEP or JAN models would be my preference. These take my tube output CDP to a totally higher level in SQ. A matched pair can be had, with some judicious searching, for around the same price.
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  • BlueMDPicker
    BlueMDPicker Posts: 7,569
    edited September 2006
    BTW - In case you haven't happened upon it, here's an interesting read:

    http://www.audioasylum.com/scripts/d.pl?audio/faq/joes-tubes.html#6DJ8
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  • marvda1
    marvda1 Posts: 4,901
    edited September 2006
    i am using amperex orange globes and jj tesla e88cc's. i can get some amperex 7308's from gary dodd for $70, he thinks they are the best tubes for this preamp. i also have jan philips that came with the preamp but i think one is leaking as there is quite a bit of high end hash and sometimes a seeping sound so i don't use them.
    Amplifiers: Norma IPA 140, MasterSound Compact 845, Ayre v6xe, Consonance Cyber 800
    Preamp: deHavilland Ultraverve 3
    Dac: Sonnet Morpheus 2, Musical Paradise mp-d2 mkIII
    Transport: Jay's Audio CDT2 mk2, Lumin U1 mini
    Speakers: Rosso Fiorentino Volterra II
    Speaker Cables: Crystal Clear Magnum Opus 2, Organic Audio Organic Reference 2
    Interconnects: Crystal Clear Magnum Opus 2, Argento Organic Reference 2, Argento Organic 2
    Power Cables: Argento Organic Reference, Synergistic Research Foundation 10 and 12 ga.
    Digital cables: Crystal Clear Magnum Opus 2 bnc, Tellurium Q aes, Silnote Audio Poseidon Signature 2 bnc
    Puritan PSM156
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  • fredv
    fredv Posts: 923
    edited September 2006
    In general, I prefer Amperex's 6DJ8/6922/7308 family, but I admit I didn't try 7308 because I am cheap :-) Matsuishita is supposed to be very close to Amperex who set up Mat's manufacturing. However, for that price, I will say 'pass'. Buy the real Amperex!!!

    -fredv-
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  • marvda1
    marvda1 Posts: 4,901
    edited September 2006
    thanks fred.
    marvin
    Amplifiers: Norma IPA 140, MasterSound Compact 845, Ayre v6xe, Consonance Cyber 800
    Preamp: deHavilland Ultraverve 3
    Dac: Sonnet Morpheus 2, Musical Paradise mp-d2 mkIII
    Transport: Jay's Audio CDT2 mk2, Lumin U1 mini
    Speakers: Rosso Fiorentino Volterra II
    Speaker Cables: Crystal Clear Magnum Opus 2, Organic Audio Organic Reference 2
    Interconnects: Crystal Clear Magnum Opus 2, Argento Organic Reference 2, Argento Organic 2
    Power Cables: Argento Organic Reference, Synergistic Research Foundation 10 and 12 ga.
    Digital cables: Crystal Clear Magnum Opus 2 bnc, Tellurium Q aes, Silnote Audio Poseidon Signature 2 bnc
    Puritan PSM156
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  • halo
    halo Posts: 5,616
    edited September 2006
    Those are great tubes. You can get them for a little less from VTS.
    Audio: Polk S15 * Polk S35 * Polk S10 * SVS SB-1000 Pro
    HT: Samsung QN90B * Marantz NR1510 * Panasonic DMP-BDT220 * Roku Ultra LT * APC H10
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  • organ
    organ Posts: 4,969
    edited September 2006
    Those are pretty much Mullard 6922. Mullard sold their tooling to Matsushita when they closed down the plants. The price is not too high nor low. I'm sure you could get them cheaper off ebay, but you know you're getting genuine NOS from dealers.
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