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6SN7 Tube Addicts

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  1. L0rdGwyn
    Since I seem to have fixed my 6F8G noise issue, time for a revisit and to check my inventory! :L3000:

    Here is my current stock:

    3x Tung Sol VT-99 flat ladder plates
    2x Sylvania and 1x Raytheon 6F8G T plates (construction on these is identical, I smell a rebrand...)
    1x RCA VT-99 gray glass flat plates
    1x National Union 6F8G round plate

    Couple questions if someone will humor me:

    1. Are there significant sonic differences between the flat ladder and round plate Tung Sol 6F8G? Seeing mixed messages on this one, wondering if acquiring and round plate is worth the money and effort.

    2. One major 6F8G player I am missing is the Ken Rad. Any consensus on where it falls on the euphonic/transparent scale and performance relative to the other 6F8G's? Also seeing a couple different plate types.

    3. Any other 6F8G's worth a roll that I haven't listed?

    Thanks!
     
  2. gibosi
    As in almost every field, there are lumpers and splitters, if you will, regarding the sound of 6F8G and 6SN7 manufactured by the same maker. To be clear I am lumper, and to my ears, there is no significant difference between the 6F8G and 6SN7 manufactured by the same maker except for the NU. And so the KR 6F8G and 6SN7 sound the same to me. However, others claim to be able to hear differences between 6F8G and 6SN7.

    With regard to your specific question concerning the TS 6F8G, I happen to have a TS 6SN7GT with the flat ladder plates and I cannot hear any difference between it and the round plate version. But then again, I am a lumper. :)

    2014-10-03 11.25.55.jpg

    2014-10-03 11.24.50.jpg
     
    Last edited: Mar 10, 2019
    L0rdGwyn and Pharmaboy like this.
  3. L0rdGwyn
    I like your approach, being a lumper has it's advantages (i.e., saving a bit of cash)

    Interesting to see the Tung Sol 6SN7GT with the ladder plates! They really did just take the 6F8G and cram it in smaller bottle. I can now sleep easy knowing I have that vintage Tung Sol sound on lockdown :)
    I'll refer to my Ken Rad VT-231 for the 6F8G sound signature, no need to reach and end up with a duplicate tube. I can forward the money I would have spent into my next tube and/or headphone obsession, after all.

    Much appreciated!

    IMAG0430-2.jpg

    My Bottlehead Crackatwoa: Tung Sol VT-99 input, Tung Sol 7802 output, GE 5-star 6005 shunt regulator tubes, loving this setup right now. A couple oldies but goodies in the back, getting some head time while I wait for my Auteur to return :beyersmile:
     
    JKDJedi, Phantaminum and leftside like this.
  4. leftside
    Nice looking amp :thumbsup:
     
    L0rdGwyn likes this.
  5. L0rdGwyn
    Thanks! Many hours went into polishing that top plate, people telling me it looks nice made it worth the effort :)
     
  6. whirlwind
    It does look very nice...good job.

    I see you are from Cleveland....I am from Coshocton, a couple of hours south of you.
    we come to Cleveland a couple times a year, ball games , concerts ect.
     
  7. L0rdGwyn
    Fantastic! I spent some time there as a child, a family friend called it home. There was a vintage toy store downtown I fell in love with at the time.

    I try to be an ambassador for Cleveland when I can, city has had a bad reputation nationally for some time, but I think people who visit see that it has a lot to offer (sports, food, arts).

    The only thing is lacks is a proper headphone vendor...
     
  8. leftside
    I can highly recommend the black plate, spade getter, metal base KenRad 6J5GT. And unlike some of the other tubes I recommend, they are cheap :) I paid $8 each for them. They just seem to be a little smoother and more refined than the 6SN7 tubes I have - but of course it could just be my tubes.

    KenRad-0000.jpg
     
    Ripper2860 and Monsterzero like this.
  9. Pharmaboy
    Do these go straight in? I don't see an adapter in this picture...
     
  10. Pharmaboy
    Oops. Disregard last question. You have them 2-per-adapter here.
     
  11. L0rdGwyn
    New addition to the tube collection today - 6SN7W metal is old news, but I'm loving it so far. Very similar in character to its short bottle cousin, but more dynamic. More players from 6SN7 Mount Olympus coming soon :)

    IMAG0464.jpg
     
    Phantaminum and Nik74 like this.
  12. Wes S
    That is one tube, I have been interested in. Nice pic!
     
    L0rdGwyn likes this.
  13. Monsterzero
    Same,however some arcing issues mentioned at the beginning of this thread(or perhaps the other thread) and $$$ these have been going for have kinda pushed them back on my tube buying priority list.
     
    Wes S likes this.
  14. L0rdGwyn
    Yes, I paid a pretty penny for it since it is NOS testing, and it is still microphonic - doesn't bother me since I'm not jumping up and down while I listen, but I think they have a history of unreliability, ironically.
     
    Wes S likes this.
  15. L0rdGwyn
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