The Tube Thread

Discussion in 'Gear & Equipment' started by DrakkarTyrannis, May 13, 2009.

  1. Darth Nihilus

    Darth Nihilus Sith Lord

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    If you used JJ 6L6GC tubes, you already tried Ruby tubes. Ruby tubes are made by JJ electronics.
     
  2. petereanima

    petereanima Br00tal Bubbly Mofo

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    no, most of them arent. Ruby DOES have a "CZ"-line (and a seperate "TESLA") in their tubes selection, these are JJs ("CZ" for Czech Republic), the others are from Russian and Chinese factories.

    Ruby tubes suffixes:
    CZ and TESLA = JJ / ex-Tesla
    CB / STR / BHT = Chinese
    CC = Cbetlaha (Russia)
    R + EH = Reflector Russia (Sovtek + Electro Harmonix)
    T = Tungsol
     
  3. Nights_Blood

    Nights_Blood Fire and Brimstone

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    Engl Powerball-stock
    4 6l6gc's in power section
    4 12ax7's in pre

    What can i do to give a little more warmth to the p-ball? Specifically to make the crunch channel thicker/useable and take a little of the edgy metallicness off the lead.

    Are the stock tubes just crap? They seem pretty decent to me.
     
  4. Thaeon

    Thaeon SS.org Regular

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    Budda Superdrive 45

    2xKT66
    3x12ax7

    Originally it had GT power tubes and Sovtek preamp tubes.

    12ax7WB in V1 and 12ax7WA's in 2 & 3.

    I put some reissue Genelex Gold Lions in the power section and put a Tung Sol 12ax7 Black Sable Gold Pin in V1 and moved the 12ax7WB to V2.

    The amp went from JCM900 territory to JVM410 territory. I took it to my friends practice space where he has 2 Randall 100 power amps into 2 4x12s. My 45 watt head on 1 4x12 is just as loud as his 200 watt rig on 2 4x12s.:hbang:

    I highly recommend these tubes...

    I'm thinking about a JJ 803s Black Sable for the cathode follower position (V2), for more gain on channel 2 since Tung Sols fail a lot in that position.
     
  5. cow 7 sig

    cow 7 sig AU director / RHLC ©

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    amp-2channel dual rec
    pre
    v1-EH12ax7 gold pin
    v2-svetlana 12ax7
    v3-EH12ax7eh
    v4-GTecc83
    v5-rubytubes 12ax7

    power
    4x shuguang EL34b
    2x jjgz34 rectifier tubes
     
  6. tacotiklah

    tacotiklah I am Denko (´・ω・`)

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    UPDATE:
    A month or 2 ago I added a JJ ecc83 from eurotubes to the v1 of my B-52 preamp. It really opened up my amp. It's not so bassy anymore. It give more mids to my tone and when plugged into the hi output jack on the clean channel, instant clean SRV tone. It's amazing what a simple $10 upgrade can do.
     
  7. Ultraworld

    Ultraworld Luthier A Holic

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    I have been using JJ tubes from Bob's Euro tubes for a long time in my 5150 Combo, THD Univalve, Buddha & Carvin amps. Never blown a tube yet. I know a great tech that keeps them running right, he tests every tube & makes sure it's correct for that amp. It means a bit of trial & error sometimes, but I get long tube life. The pre amp tubes last forever.
     
  8. DrakkarTyrannis

    DrakkarTyrannis WWSD?

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    So I took out the 6550s I was using and put in the KT90s again..OH MY GOD..why the fuck did I take these out in the first place? I think these needed to be burned in for a while to really show off. These things make my DTX roar. HUGE low end, thick low mids, punchy and aggressive and just amazing. I have to scale back the bass on my amp, but it's totally worth it. I don't think I'll ever use another tube again (unless I can find a way to land a quad of KT120s).
     
  9. cow 7 sig

    cow 7 sig AU director / RHLC ©

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    UPDATE
    v1-tungsol gold 12ax7.im on the fench with this tube.
    v2-JJ ecc803s gold,again on the fence
    v3-shuguang 9th gen
    v4- as above
    v5-sovtek 12ax7lps.

    power is all =C= 34s
    still JJGZ34 rect tubes
    i now have a fuckton of tubes to try and a few(more like 28) NOS tubes as well.
     
  10. DrakkarTyrannis

    DrakkarTyrannis WWSD?

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    After YEARS of having it in the PI slot, I retired the Sovtek 12AX7LPS, and put in that Tung Sol gold pin 12AX7 I had zero use for. I originally intended it for the V1 slot in my DTX but I didn't care for it. In the PI slot it gave the amp sharper teeth and the character of the amp isn't as sluggish as before. Not a drastic change in any way, but a nice one. I think I'll keep it there for the time being.
     
  11. cow 7 sig

    cow 7 sig AU director / RHLC ©

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    i plan to do that very change too drakk,see how it sounds in a recto.
    i got a mullard 14mm short plate from 1954 to try in V1,as well as a few RFTs and a tungsram long black plate.
     
  12. DrakkarTyrannis

    DrakkarTyrannis WWSD?

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    Put a JJ ecc83s in the V4 slot..SO much better..whew lawd. Once again the Tung Sol is useless..
     
  13. oniduder

    oniduder HONKEY DONKEY

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    umm diezel herbert kt88 sextet electro-harmonix style

    and diezel vh4 getting winged c sed 6550 killer style!

    all the little 12ax7 jazz i can't remember sorry
     
  14. Opeth666

    Opeth666 SS.org Regular

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    Amp: Mesa Boogie Nomad 100
    Power: JJ EL34s right now but going to try out some JJ KT88s
    Preamp: 12Ax7s, but going to try some JJ ECC83s as well.
     
  15. cow 7 sig

    cow 7 sig AU director / RHLC ©

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    i put a raytheon 12ax7 from 1966 in V1 FUCK ME...WOW .
     
  16. DrakkarTyrannis

    DrakkarTyrannis WWSD?

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    Ha..just put the Sovtek back in the V4 slot..I'll stick with that. I guess sometimes "upgrading" isn't the best way to go.
     
  17. cow 7 sig

    cow 7 sig AU director / RHLC ©

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    yep agree.i put my LPS back in the PI slot on my recto.lol
     
  18. Benzesp

    Benzesp Banned

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    Mesa Trip-Recto 2 Channel.
    SED EL34's x6
    JJ 12AX7 Pre amp kit.
    Using Diode Rectifiers

    Loud as hell, Punchy in the midrange as expected super clean and defined. Got this amp in a trade, already had a mismatched set of EL34's. I like it so much so I decided to stick with them when I re tubed. Went with JJ Pre's because they were super quiet in my old Splawn Quick Rod. No surprises here. If you have a recto, and don't like it, try some EL34's in it. I really thought the difference would be marginal at best.. Wrong.
     
  19. cow 7 sig

    cow 7 sig AU director / RHLC ©

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    i swear by =c= EL34s in my recto,and NOS tubes in the pre amp and rec tubes
     
  20. DrakkarTyrannis

    DrakkarTyrannis WWSD?

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    I put a JJ ECC82 in V2 of my amp to lower the insane gain and open it up a bit. I like what it did but it's a bit too open and crunchy instead of open and slightly less hotter than the normal 12AX7. I just ordered an ECC81(12AT7) as I figure it'll be a middle ground between the two and I'll report on what I think about it. If it goes well I'd like to try one in V4 for the phase inverter. So far the stock Sovtek 12AXTLPS beats everything else for that position but I'm open to try one more thing before just sticking with the Sovtek.
     

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