Tube Question

audiocr381ve
audiocr381ve Posts: 2,588
edited July 2011 in 2 Channel Audio
So, my Onix SP3 Mkii tube integrated finally came in. Problem is, instead of shipping the two Electro Harmonix 6922's as promised, I got their boxes with a Melody 12AX7 in one and in the other a tube with no markings (which I'm assuming is a Electro 6922). I don't know if the seller used these in the 6922 position, but I have them in and can't hear anything weird going on.

Am I safe right now?

Here is the manual: http://onix.pbworks.com/w/page/7224976/SP3
Post edited by audiocr381ve on
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    I left the amp running for a few hours with the 12AX7 in the 6922 and the unmarked tube in the other 6922 while I went to a birthday party. I came back and the thing is HOT. Being so new to anything tube I don't know if this is normal or not. I can't hear anything horrible but their is a light buzz when I turn the volume all the way down.
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  • dorokusai
    dorokusai Posts: 25,577
    edited July 2011
    You can't run a 12 series tube in that socket, or vice versa. You have a mismatched pair and a wrong box. I'd remove them for now and order a matched 6922/6DJ8 pair ASAP.[PHP][/PHP] Don't run that IA until you get the right tubes installed. Bad idea to do that w/o knowing what your doing.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    dorokusai wrote: »
    You can't run a 12 series tube in that socket, or vice versa. You have a mismatched pair and a wrong box. I'd remove them for now and order a matched pair ASAP.[PHP][/PHP]

    Dammit. The seller said I was all good to go so knowing nothing about tubes I assumed the tubes in the boxes marked "6922" were okay. Did I damage anything? I left it running for about 2 hours. :eek:
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  • dorokusai
    dorokusai Posts: 25,577
    edited July 2011
    No, I'm sure you would have came home to a fire if you damaged something.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    dorokusai wrote: »
    No, I'm sure you would have came home to a fire if you damaged something.

    It was running ridiculously hot. Is this normal for tube amps?
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  • dorokusai
    dorokusai Posts: 25,577
    edited July 2011
    That integrated uses 2 6922, 2 12AU7 and 2 12AX7...and it wouldn't work correctly if you didn't, so I believe you have the right tubes per se. I would suggest you order a matched pair of each type and ditch the old ones.

    You may have been using the wrong 12 series tube, which changes plate voltage, and almost blew up your amp. The 12 series is changeable but it depends on the circuit design. Dude, you just don't do that and don't use tubes that you cannot identify. At least come here and ask if you have questions.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    dorokusai wrote: »
    That integrated uses 2 6922, 2 12au7 and 2 12ax7...and it wouldn't work correctly if you didn't, so I believe you have the right tubes per se. I would suggest you order a matched pair of each type and ditch the old ones.

    This is what he gave me (except he sent the right boxes and the wrong tubes for the 6922's) and he said they have less than a 100 hours on them.

    4x TUNG SOL 5881
    2x Electro Harmonix 6922 (WRONGO)
    2X Tesla JJ 12AX7
    2X Tesla JJ 12AU7
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    dorokusai wrote: »
    That integrated uses 2 6922, 2 12AU7 and 2 12AX7...and it wouldn't work correctly if you didn't, so I believe you have the right tubes per se. I would suggest you order a matched pair of each type and ditch the old ones.

    You may have been using the wrong 12 series tube, which changes plate voltage, and almost blew up your amp. The 12 series is changeable but it depends on the circuit design. Dude, you just don't do that and don't use tubes that you cannot identify. At least come here and ask if you have questions.

    Dude, you're totally right but the guy made a huge mistake and sent the wrong tubes in the RIGHT boxes :eek: A tube newb like me trusted that this guy who happens to own a friggin' audio store knew what he was doing.

    I really hope nothing got jacked up.
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  • dorokusai
    dorokusai Posts: 25,577
    edited July 2011
    I'd leave all of that up to suspect at this point and order new ones. No, that's not normal but make sure you used the 12 series in the correct socket. I believe the 100 hour statement as BS and would suggest you start your own hour record. PPL lie about hours on tubes all the time.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    dorokusai wrote: »
    I'd leave all of that up to suspect at this point and order new ones. No, that's not normal but make sure you used the 12 series in the correct socket. I believe the 100 hour statement as BS and would suggest you start your own hour record.

    Any suggestions on budget tubes to get me started for all positions?
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  • dorokusai
    dorokusai Posts: 25,577
    edited July 2011
    Not really as far as a budget tube since they all sound pretty close in the cheap stages. I'd suggest getting matched pairs of EH/JJ/Mullard(New) or Sovtek for the 12 series and a nice matched pair of 6922 NOS JAN Sylvania, Genelex or Black Sable.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    dorokusai wrote: »
    Not really as far as a budget tube since they all sound pretty close in the cheap stages. I'd suggest getting matched pairs of EH/JJ/Mullard(New) or Sovtek for the 12 series and a nice matched pair of 6922 NOS JAN Sylvania, Genelex or Black Sable.

    Those are 'spensive :eek::eek::eek:

    Is their anything in the $20 range for a pair of 6922's?
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  • dorokusai
    dorokusai Posts: 25,577
    edited July 2011
    Sure, just use the other brands as a reference.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    dorokusai wrote: »
    Sure, just use the other brands as a reference.

    Do you have a personal favorite place to buy from online?
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  • dorokusai
    dorokusai Posts: 25,577
    edited July 2011
    EBay....Audiogon....it's your money and your comfort level. Otherwise it's Tube Depot or The Tube Store. I have a private hookup for tubes hoss :smile:
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • nooshinjohn
    nooshinjohn Posts: 25,420
    edited July 2011
    You guys are just like two peas in a pod!:biggrin::wink:
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • decal
    decal Posts: 3,205
    edited July 2011
    Have you contacted the seller with your concerns?
    If you can't hear a difference, don't waste your money.
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  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited July 2011
    decal wrote: »
    Have you contacted the seller with your concerns?

    Seller is sending the correct tubes out today. Here goes the waiting game again :cool:
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  • soundfreak1
    soundfreak1 Posts: 3,414
    edited July 2011
    Highly recomend brent jessee . He set me up with some great tubes at good prices and he qill spend time qith you and answer your ? .
    Main Rig:
    Krell KAV 250a biamped to mid/highs
    Parasound HCA1500A biamped to lows
    Nakamichi EC100 Active xover
    MIT exp 1 ic's
    Perreaux SA33 class A preamp
    AQ kingcobra ic's
    OPPO 83 CDP
    Lehmann audio black cube SE phono pre, Audioquest phono wire (ITA1/1)
    Denon DP-1200 TT. AToc9ML MC cart.
    Monster HTS 3600 power conditioner
    ADS L1590/2 Biamped
    MIT exps2 speaker cable
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  • dpowell
    dpowell Posts: 3,068
    edited July 2011
    Drcilantro has genalex reissue 6922's for sale for a reasonable price. I just upgraded the stock 6922's in my preamp with the genalex's and am enjoying them. Detail has improved significantly. There are more vintage tubes that are better but they are also a lot more expensive.
    ____________________________________________________________

    polkaudio Fully Modded SDA SRS 1.2TLs + Dreadnaught, LSiM706c, 4 X Polk Surrounds + 4 X ATMOS, SVS PB13 Ultra X 2, Pass Labs X1, Marantz 7704, Bob Carver Crimson Beauty 350 Tube Mono Blocks, Carver Sunfire Signature Cinema Grande 400x5, ADCOM GFA 7807, Panasonic UB420, Moon 380D DAC, EPSON Pro Cinema 6050
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