Preamp Tubes? - Who, What, When, Where, Why, and How?

Discussion in 'The Workbench' started by joshuaaewallen, Jan 29, 2009.

  1. SkyMonkey

    SkyMonkey Well-Known Member

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    Cheers RiverRatt.
     
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  2. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    They are indeed JJ EL34's, nothing special, but I'm happy with the tone.
     
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  3. solarburnDSL50

    solarburnDSL50 Well-Known Member

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    Tone is such a woose.:hmm:
     
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  4. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    I went through my caddy and tested all my 12AX7's. I found a few gems that I wasn't expecting. I put that old 1959 Matsushita long plate in V1, left the Raytheon in V2, used a nice Sylvania in V3, and put the hottest tube I found in V4. It was another Sylvania that tested ridiculously high. I like a hot PI tube.
     
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  5. mickeydg5

    mickeydg5 Well-Known Member VIP Member

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    Is a hot PI better than a lopsided PI? I think so but maybe not everyone.
     
  6. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    I hear a bigger difference with a hot PI tube. I'd describe the sound as more warm and punchy. YMMV.
     
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  7. mickeydg5

    mickeydg5 Well-Known Member VIP Member

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    And it will provide more harmonic distortion when cranked.
     
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  8. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    I don't really have anything new, just trying to keep the thread alive. I'm still happy with the combination I'm running now. I was thinking today that I'd like to have a nice Tungsram to try in V1. Just how thick can you get the mids? That tube might be the answer. :hmm:
     
  9. mickeydg5

    mickeydg5 Well-Known Member VIP Member

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    Tung s ram. It sounds like something a women would like. Midrange moan. That could be a good instrumental title.
     
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  10. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    LOL yeah, women do. I read that Lita Ford uses them in her Marshalls. I think Terry Kilgore dropped that nugget on TGP years ago.
     
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  11. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    You may have just stumbled onto the secret of "woman tone". :naughty:
     
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  12. mickeydg5

    mickeydg5 Well-Known Member VIP Member

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    Dude I have them and so much more in my stash but have never gotten around to trying/testing them.
    I have so much to do before I set up my laboratory.
     
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  13. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    I had one in my stash and it cracked while it was in an amp. They're not doing you any good if you don't use 'em though. Pissed me off cuz I had ordered it from eBay at retail price, which I don't normally do. It's like trophy hunting in a wildlife preserve.
     
  14. mickeydg5

    mickeydg5 Well-Known Member VIP Member

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    I moved recently and a lot of things are packed. Like I mentioned, I have to setup my laboratory. I will happen in due time. :)
     
  15. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    I'm going to have to leave the back off my amp if I'm going to really experiment, and then there's the question of what that would do to the tone. I might remove the screen from the oval in the back and see if I can manage that way. The combo has the preamp tubes all the way towards the front. Tube rolling was so much easier with the head.
     
  16. Bownse

    Bownse Well-Known Member

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  17. RiverRatt

    RiverRatt Well-Known Member VIP Member

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    Cool! How did you install the nuts?
     
  18. solarburnDSL50

    solarburnDSL50 Well-Known Member

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    I use one screw to close the back. Works fine no fussing. Great for rolling.
     
  19. Bownse

    Bownse Well-Known Member

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    I created a stress relief because of the crap particle board construction. Pretty much fender washers epoxied to the inside, then the back of the fastener epoxied to it.
     
  20. Dogs of Doom

    Dogs of Doom Moderator Staff Member

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    New Sensor?

    upload_2019-5-4_22-45-21.png

    (after I posted, I noticed that the tube is from 1960s, must be Old Sensor) :)...

    I didn't know that 6N2P were 12AX7/ECC83 tubes.

    I've run across that site before:

    http://rutubes.com/

    & have seen those cheap tubes. That's one of their premium tubes at under $5...

    They have quite a list of Russian mfgr's in the pull down menu.

    upload_2019-5-4_22-48-59.png

    Now days, I'm seeing $20/tube for CP at a lot of places. You can almost buy 16 tubes for that here...
     

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