The Sushi Box FX Secret Society

Discussion in 'Effects [BG]' started by kranahan, Oct 9, 2020.


  1. Lowendtech

    Lowendtech Happily trending in my own peculiar direction. Supporting Member

    Here’s the gut shots from my old Edison.

    4FCDC489-D902-466F-8139-CE007483CB5B.jpeg

    8FC8C62F-21AF-4BBC-8380-0DCBD23AAB50.jpeg
     
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  2. Roxbororob

    Roxbororob Supporting Member

    Jun 8, 2015
    Montreal
    For what its worth Ive had mine out to two loud rehearsals, and the very mild microphonics mine has was not an issue (granted I had mine on full time). My drummer noticed enough to inquire what changes I hade made to my pedal board.

    This :thumbsup:
     
  3. Roxbororob

    Roxbororob Supporting Member

    Jun 8, 2015
    Montreal
    I didnt know Edison was starved plate (is it?). EDIT: Do those small caps are answer the question?

    Note only two, in line, plastic standoffs supporting the board. Not rigid (in this case a good thing).
     
    Last edited: May 6, 2021
  4. Sushi Box FX

    Sushi Box FX Supporting Member Commercial User

    May 23, 2020
    Chicagoland, USA
    Sushi Box FX, owner
    Yup, Edison runs the plate at 27V.
     
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  5. Roxbororob

    Roxbororob Supporting Member

    Jun 8, 2015
    Montreal
    Probably more of a factor than the mounting arrangement?
     
  6. BunchyMutt

    BunchyMutt Supporting Member

    Jul 3, 2014
    Nashville, TN
    Is the microphonnicness mitigated at lower voltages? Maybe that’s one reason why the Edison is only 30V?
     
  7. Sushi Box FX

    Sushi Box FX Supporting Member Commercial User

    May 23, 2020
    Chicagoland, USA
    Sushi Box FX, owner
    Microphonics are still present at lower voltages, they're just more evident with higher output level. Microphonics are inherent to the tube, not the circuit.
     
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  8. Lowendtech

    Lowendtech Happily trending in my own peculiar direction. Supporting Member

    Goofed around to see if I could make the board more clear.

    8E1BE054-AC38-48A5-86AD-5D7AFBE736B4.jpeg
     
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  9. dedpool1052

    dedpool1052

    Jan 10, 2011
    Seattle, WA
    Alright.
    The "get something else" is more what I was suggesting.
    Can you set up two of your WH, one with an EF86, then another with a different tube, whether it be a 12AU7 or whatever, and A/B them, while adjusting the voltage to the non-EF86 one, to see if another tube can approach a similar tonality that you're getting with the EF86 equipped WH @235V?
     
  10. Sushi Box FX

    Sushi Box FX Supporting Member Commercial User

    May 23, 2020
    Chicagoland, USA
    Sushi Box FX, owner
    I mean I could try something, but EF86 is a pentode and the 12A*7 series are triodes, anything I try would sound different. Honestly I think Space Heater with the gain rolled back would be about as close as you can get with a triode-based preamp, but the character is still different.
     
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  11. NKBassman

    NKBassman Lvl 10 Nerd Supporting Member

    Jun 16, 2009
    Winnipeg, MB, Canada
    Are there other small pentodes you could try?
     
  12. Killing Floor

    Killing Floor Supporting Member

    Feb 7, 2020
    Austin, TX
    There are always a few bottles of togarashi in my kitchen. The secret to edamame!
     
  13. Sushi Box FX

    Sushi Box FX Supporting Member Commercial User

    May 23, 2020
    Chicagoland, USA
    Sushi Box FX, owner
    I mean there are literally hundreds of different varieties of sharp cutoff pentodes, it would just be about finding one that has similar curves and responds similarly. With the prevalence of EF86 in Vox and Matchless amplifiers, if there was a good replacement out there that sounded as good, I would be curious why they aren't using it. I'll look around, but that will take a considerable amount of reading and likely won't happen right away as I have other things that demand my attention.
     
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  14. BunchyMutt

    BunchyMutt Supporting Member

    Jul 3, 2014
    Nashville, TN
    I guess purchasing a tube dampener ring would be a good idea
     
  15. jbybj

    jbybj Supporting Member

    Jun 11, 2008
    Los Angeles
    How about a highly viscous oil bath?
     
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  16. BunchyMutt

    BunchyMutt Supporting Member

    Jul 3, 2014
    Nashville, TN
    I don't know enough about tubes to know if my op was ignorant in some way. I'm assuming from your response I shouldn't do it and/or a ring wouldn't do much?
     
  17. Sushi Box FX

    Sushi Box FX Supporting Member Commercial User

    May 23, 2020
    Chicagoland, USA
    Sushi Box FX, owner
    I intend to get some dampener rings to try out and see if they help. Highly viscous oil bath would be fine, make sure you seal the box beforehand as it isn't currently sealed. Make sure the oil is non conductive as there are high voltages present.
     
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  18. BunchyMutt

    BunchyMutt Supporting Member

    Jul 3, 2014
    Nashville, TN
    I had no idea the oil bath was a thing. I thought it was a joke. Researching now
     
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  19. Sushi Box FX

    Sushi Box FX Supporting Member Commercial User

    May 23, 2020
    Chicagoland, USA
    Sushi Box FX, owner
    Pretty sure it was a joke, but that doesn't mean it wouldn't work :p
     
  20. BunchyMutt

    BunchyMutt Supporting Member

    Jul 3, 2014
    Nashville, TN
    :bag::facepalm:
     
  21. Primary

    Primary TB Assistant

    Here are some related products that TB members are talking about. Clicking on a product will take you to TB’s partner, Primary, where you can find links to TB discussions about these products.

     
    Jun 18, 2021

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