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Darkvoice 336i & 336SE Tuberolling PartII

Discussion in 'Headphone Amps (full-size)' started by heatfan12, Jul 31, 2008.
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  1. Towa
    Yeah I just bought the 7236 and 6SN7GTB as my first tube roll.

    20190812_153830.jpg
    20190812_153913.jpg
    20190812_154204.jpg
    So far this combo is vastly superior to stock. Sounds a lot wider and more airy than before.
     
    JKDJedi, sennfan83261 and Slade01 like this.
  2. Slade01
    I want to throw this question out to the tube braintrust. I have a Sylvania JAN 6080wb tube. For the life of me, it doesnt sound good with any tubes I have tried pairing with it. It just sounds "meh"/anemic no matter what. Is it just me or is there some tube it is supposed to pair good with?

    Btw - yes can't go wrong with rca 6as7g or tungsol/sylvania 7236 for the power tube. They enhance the sound for sure in a great way.
     
    JKDJedi likes this.
  3. JKDJedi
    The 6AS7G thread reports the 6080 to be "low gain @ 2- great vocals, wide soundstaging" I have two of them, both Philips ( 6080WC & 6080 ) and they sound so different from each other, and depending on the mood or tube you match them with makes the difference more pronounce. What you might be hearing, or not hearing, is the little xtra boost in gain from the 7236 tube. Unfortunately, there's no bang for your buck 6080 out there (that I know of, someone please chime in if there is!) If you want a clean sounding 6080, get the card out. Mullard, Bendix, makes some nice ones. And maybe yours needs a good burn in. For me the Sylvania Chrome Dome 6SN7GT (early 50's) was a great match with the 6080.
    Edit: just a and b with 6080 and 7236 with a Tung Sol and yes the 6080 sounds as you described it, and I have to confess I almost got rid of my 6080 because of the preferred sound of the 7236 a few months back, went on an anti 6080 parade on a few pages here and Facebook. And was told to let the 6080 settle in to the amp for a week, so I did, and wow, it made a difference on my perception of the sound. Good question!
     
    Last edited: Aug 14, 2019
  4. sennfan83261
    That used to be the Sylvania 6080GB, as they used to be had for $10 or so, times have changed unfortunately.
     
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  5. JKDJedi
    That was one hard tube to find, Some great reviews on the tube, nice find Sennfan
    Screenshot_20190813-194327.png
     
    Last edited: Aug 13, 2019
    Slade01 and sennfan83261 like this.
  6. sennfan83261
    Nice. I was about to say that you should keep the second 6080GB as a backup later down the road. Let all of us know how they compare to the others that you have.
     
    JKDJedi likes this.
  7. Slade01
    Thanks - Yes, I am at that stage too where I was about to just get rid of this 6080 and have not looked at any 6080s since trying it. I will keep the 6080 in right now and see if more burn changes my mind. Ironically, the only tube I have actually liked pairing with this 6080 so far is a GE 6SN7GTB (early 60s), which is the one tube i disliked the most out of what I own. Up to now, to my ears anyways -- this GE tube has lived up to the description from the 6SN7 Identification Thread here, where its an average tube, that is nothing to go out of the way for (dry, gritty, bloated). But with this pairing, I can make out a more airy/wider sound stage than before. Mids/Vocals are more liquid, but the bass can still be a bit bloated at times (depending on the song I suppose). All in all its more musical though, which I can live with.

    20190814_103612.jpg
     
    Last edited: Aug 14, 2019
    sennfan83261 and JKDJedi like this.
  8. sennfan83261
    Yeah, the stock tubes are pretty crappy, as anything would be better than them. Your combo should serve you well for awhile.
     
    Last edited: Aug 14, 2019
  9. JKDJedi
    IMG_20190814_165910.jpg
    Gonna eat dinner, have a shot of tequila, then take this set up for sit down session.. (Winged C 6H13C & Sylvania VT-99 CF8G)

    EDIT: (1.5 hours later) Wow..Sennfan... this 80 year old tube is just as amazing to listen to as it is to look at, relaxed analog sound with rich instruments and vocals. Has this cool little reverb with the echos that scream vintage vacuum tube here, I'm saying this with a huge grin on my face, thank you Sennfan...thank you!!
     
    Last edited: Aug 14, 2019
    sennfan83261 and Slade01 like this.
  10. sennfan83261
    Great minds think alike, hehe. Yeah, a more relaxed, warmer sound (slightly less treble) than the NU 6F8G round plates with the traditional Sylvania emphasis on the mids. Still, I typically love Sylvania tubes and the Sylvania VT-99 is no exception, a wonderful tube imo. With the RCA 6AS7G silver lettering/black plates, the soundstage and imaging are pretty awesome. Some observations on this tube (and others):

    https://www.audioasylum.com/messages/tubes/221750/6f8g-vt99-observations
    http://web.archive.org/web/20160517232839/http://www.tubemaze.info/sylvania-6f8gvt-99-t-plates/ [EDIT (9/11/19 ):This site had an informative review on the Sylvania VT-99 but it appears to have been hijacked at this date. Updated with web archive snapshot]


    [​IMG]
     
    Last edited: Sep 11, 2019
    JKDJedi and Slade01 like this.
  11. JKDJedi
    So it turns out my Philips 6080WC (I had totally forgotten this) is actually a Sylvania O.O We probably have the same tube. what year was yours? ( I searched the net and it lead me to some knuckhead asking about the Philips 6080WC origins). And I found a tube (from my junk drawer) that plays really nice with the Sylvania 6080, the RCA 6SN7GT grey glass.
     
    Last edited: Aug 17, 2019
  12. Slade01
    The printed code on mine is ECB 6643. On the box i got it with, it says date packed 10-65. Not sure how to interpret that other than it is from 65 or 66?
     
  13. JKDJedi
    65 is my best guess, the one I have is from 1987 lol, probably the last one they ever made (joking) :D
     
    Last edited: Aug 18, 2019
  14. JKDJedi
     
  15. DarkDrummer
    That’s only if you pay extra for super speedy delivery.....otherwise it will come via The Slow Boat From China!!! :>(
     
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