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NOS Power Tubes...Your Thoughts

Discussion in 'Ampage Area' started by Robbie, Sep 10, 2017.

  1. Aymara

    Aymara Country Gent

    Jul 6, 2013
    Germany
    Correct.
     
  2. loudnlousy

    loudnlousy Country Gent

    Age:
    51
    Oct 18, 2015
    Hildesheim, Germany
    You are right. But I experienced JJs, EH, Boogies etc. to be quite consistent in quality marked under each brand. (JJs mostly good, EH often disapointing among others.)
    There where significant differences among each one brand`s production, though. Especially in the late nineties, where supply of tubes ran really short and only some obscure chinese tubes could be bought and selected by the wholesalers.
     
    Henry likes this.
  3. loudnlousy

    loudnlousy Country Gent

    Age:
    51
    Oct 18, 2015
    Hildesheim, Germany
    ...I make a difference between tubes for every-day use and NOS tubes used in my treasured vintage JTM 45 used for recording, only.
     
  4. Henry

    Henry Friend of Fred

    Apr 9, 2014
    Petaluma
    It'll sound different but you won't know if it's better til you Try. Of course, after putting all that time and money into It, you would be let down if it's not a significant improvement, so you will probably convince yourself you like the change. Or you can just not do the change and be happy with your sound and the money in your wallet.
     
    Waxhead likes this.
  5. Robbie

    Robbie Country Gent

    Age:
    64
    Jun 17, 2013
    Sarnia Ontario Canada
    **************************
    That's a very reasonable comment Henry, I take it to heart and appreciate it. On the other hand, I'm a very pragmatic person...if I don't like the sound, I won't like it, no amount of money spent will color my opinion. Good is good, not so good is not so good...$$$ have no effect on my ears. Fortunately, the cost is minimal for me in this case, the biggest downside is the aggravation of putting JJ's back in and getting them biased etc. if I don't like them.
     
    Henry likes this.
  6. Waxhead

    Waxhead Country Gent

    Aug 30, 2014
    Australia
    I've never owned NOS tubes myself but have played amps of buddies who had them inserted.
    Sounded good and never heard anything bad about em.

    But as with all tubes and all amps there is no right or wrong and no ultimate best.
    It's 100% personal preference and some tubes suit some amps better than others.
    It's all about what tones you are trying to achieve in what specific amp.
    No one tube brand or type is the answer in all situations for all users.

    I'm more interested in the characteristics of each individual tube than who made it.
    I'm clear about what amp tone outcomes I want and I choose tubes specifically to deliver it.
    So provided it's a good quality durable tube and delivers the features I want I don't care who made it or where it came from.

    And by choice I've never had the same brand of tube in every position.
    All JJ pre-amp & power tubes, for example, in every position in 1 amp maybe what you prefer but may not be my preference, or the next guys either, in THAT amp.
    A high gain JJ pre-amp tube in position 2 might be perfect for me in a Mesa but no good for you in a Fender or Vox.
    And I don't want low gain noisy tubes anywhere near my amps but they maybe be perfect for a country picker with an Fender Twin.

    I've tried lots of different tubes made easier because the Mesa Boogie amps I own don't require re-biasing when you change tubes.
    You just insert and play on Mesa amps.
     
    Last edited: Sep 10, 2017
    Henry likes this.
  7. Ricochet

    Ricochet Gretschified

    Nov 13, 2009
    Monkey Island
    The only reason I have NOS tubes is because they were cheaper than new production. Spasiba comrades! :D
     
    Waxhead likes this.
  8. ZackyDog

    ZackyDog Country Gent

    Feb 6, 2015
    In the USA
    I've tried ANOS Mullard, ANOS Telefunken and ANOS Ei preamp tubes in my VOX top boost amps. The new JJ ECC803s sounds the best (and better than other new tubes like Sovtek, TAD, PM, EHX, Tung Sol, etc.). I've tried new JJ, ANOS Ei, ANOS Brimar and NOS GE EL84s. JJs and GEs sound the best, and better than other new tubes (TAD, Sovtek, Tung Sol, EHX, etc.).

    After all the experimentation (it gets really expensive), new JJs work the best for me. NOS are nothing special to me, except for the NOS GE EL84s.

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  9. Aymara

    Aymara Country Gent

    Jul 6, 2013
    Germany
    It's also worth mentioning, that some shops also sell pre-selected tubes, which comes in handy, if you want lowest noise levels.
     
  10. emicad

    emicad Synchromatic

    Age:
    39
    779
    Jul 14, 2015
    Rome, Italy
    Never used them, I don't care that much to be honest.
    It would be useful to find a good deal and stock up. I wouldn't pay that much for just a set if tubes.
     
    Robbie likes this.
  11. Robbie

    Robbie Country Gent

    Age:
    64
    Jun 17, 2013
    Sarnia Ontario Canada
    That a very valid point Chris. Just as an aside, I've purchased so called matched sets of tubes (new ones) and there has been as much as 8mV difference in them. That said, I've also bought matched tubes that were almost bang on.
     
    Aymara likes this.
  12. Robbie

    Robbie Country Gent

    Age:
    64
    Jun 17, 2013
    Sarnia Ontario Canada
    ******************
    I've never been much for NOS tubes myself, because of the cost. In this case there is no inflated cost, that's essentially why I'm considering them.
     
    emicad likes this.
  13. drrohle

    drrohle Synchromatic

    613
    Jan 3, 2014
    Hays, KS
    This is just my thoughts about using 'old' tubes from my half century experience and this is not comparing the advantages/disadvantages of newer stock tubes and their audio characteristics. This is just about age.

    When a tube lays around for half a century doing nothing, age can take a toll. Such things as a slight leakage in the envelope allowing air molecules in to make it 'gassy'. Other things I've noticed that daily temperature changes causing expansion/contraction of the elements and their internal 'welding' process can cause them to loosen rendering the tube microphonic or intermittent at worst. Also sometimes the internal elements can sag and bow due to father time/temperature causing shorts & noise etc.

    I've used NOS stuff quite a lot and it's a crap-shoot. You may or may not get lucky. On my last amp build, I used NOS 12AU7's and withing a couple months noticed all the above happening to some degree. Am I against NOS tubes, heavens NO! I'm an old ham radio operator and we are well known for being 'cheap' and using whatever is at hand. But as someone stated earlier in these posts, if you are a 'gigging' musician I'd spring for the best tubes you can find. It's kinda like an old fellow pilot once told me. "When you are flying at 15,000 feet over the mountains... you want the best spark plugs money can buy". ;)
     
    Bertotti likes this.
  14. Robbie

    Robbie Country Gent

    Age:
    64
    Jun 17, 2013
    Sarnia Ontario Canada
    ***********************
    IMHO, you've summed this up really well and my sentiments are very similar, actually pretty much identical. The price I can get these tubes for, as well as the NOS hype, is what has/had me considering them. But at the end of the day reliability is a HUGE factor for me. I would not tolerate terrible sound/tone for the sake of reliability but I think NNS (New New Stock) tubes such as JJ's (and others) can provide both reliability and good tone.
     
  15. drrohle

    drrohle Synchromatic

    613
    Jan 3, 2014
    Hays, KS
    So right Robbie. I think nostalgia is the most motivating factor here. And as I remember back in the 60's when I first started servicing electronics that tubes were no more reliable (and perhaps even less reliable) than the new stock is today. Tubes by their very nature were always problematic, even straight out of their new shiny box. You could always count on a few bad apples in the barrel.

    Other than guitar amps (for their sound), the best thing to happen in electronics was the Transistor.
     
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  16. zebulon

    zebulon Electromatic

    99
    Aug 8, 2017
    oxford
    [​IMG]
     
  17. loudnlousy

    loudnlousy Country Gent

    Age:
    51
    Oct 18, 2015
    Hildesheim, Germany
    There is a point that cannot be discussed-away: There are very few poweramp tubes that are built for really high voltages. E.g.: Old HiWatts need very high voltages at the tube that nearly all modern EL34 cannot deliver. You need old stock tubes to have a reliable performance.
     
    Robbie likes this.
  18. Gretschtim1

    Gretschtim1 Country Gent

    Dec 4, 2012
    Dundalk, Md
    One thing to remember is as time goes by the best of the NOS tubes are starting to go away.
    In America for instance tubes haven't been made here since the early 1980s - that's 35+ years ago.
    So now we're getting to the bottom of the barrel and finding high quality NOS tubes is just going to get harder to do.
    No doubt some of the best tubes in history were made in the USA - when they started phasing out making tubes here more and more of them were made in other countries and lots of those tubes were considered to be inferior to the ones made in the USA.
    Recently I've found hundreds of places that are selling bulks of so called NOS tubes.
    Many have been repackaged and are used tubes - most of them are borderline bad tubes that should have been thrown away 25 years ago.
    So you really have to be careful when you buy tubes that are marked as NOS.
    Really good NOS tubes can really sound great in a good guitar amp but finding good "old" tubes these days is getting harder to do.
    I've had a good stock pile of NOS tubes that I bought over the years - many of them back in the 80s & 90s when you could find them really cheap.
    Now the supply is getting low and I've been using some of the new tubes such as JJ and I have to admit some of them sound really good.
    I don't think they last as long as the old USA made tubes by GE, RCA, etc. but the prices are pretty reasonable.
     
    Robbie likes this.
  19. Synchro

    Synchro Super Moderator Staff Member

    Jun 2, 2008
    Tucson, AZ
    Admin Post
    I'm with you 100% on this. I remember watching TV repairmen in the '70s and they would often try several tubes before they found one that worked well. Not all vintage tubes were good tubes. Perhaps more to the point, the tubes that remained in their boxes for the last 40-50 years might well be the tubes that techs rejected back in the day.

    Don't get me wrong, there are some great NOS vintage tubes out there, but just because a tube is NOS vi Tate does not automatically make it a great tube.

    A few years ago, I installed a quad of new production 6L6s in my TRRI and was astounded by the balance of the set. They were beautifully matched and once properly biased made that amp sound absolutely fantastic.


    I'll be curious as to how this turns out. I also have a '68 CDR and like the sound of the Custom channel with its Bassman-like tone stack. However, I've noticed that it's a bit "crunchy" on the low notes of late. Normally, I make a few changes to any production amp, swap a few tubes, etc. but this CDR had some teething problems along the way and I didn't want to muddy the waters until they were resolved. (It turned out that the reverb cables were the source of the problem.). Now that it's ok on that account, I need to start by biasing the power tubes, then possibly substitute a 12AY7 in V1, which improves clean headroom.

    While on that subject, I will mention that I wasn't happy with the early breakup of this amp and ended up adding a resistor in parallel with the negative feedback resistor, which brought the clean headroom into line with what I would expect from a DRRI. Overall, the amp sounds good, but I must say that the road was a bit rocky, with strange phantom noises coming from the OEM reverb cables, which must have been from the lowest bidder.
     
  20. TV the Wired Turtle

    TV the Wired Turtle Friend of Fred

    Jul 25, 2009
    so cal
    this is why you stick to nos 6G6-WGB tubes.. nothing nothing nothing compares. Especially w NOS 90's EI ECC83s.. ohhh gaaaaawd!