Behringer Vintage Tube Monster VT999 Mod

Discussion in 'Pedals' started by slaveunit, Feb 16, 2012.

  1. slaveunit

    slaveunit Well-Known Member

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    Behringer Vintage Tube Monster (VT999) Pedal (BitMo Monstrosity Mod - The Monstrosity kit adds a 3-way switch providing 3 distinct voicing tones - a vintage blues tweed, a buxom woman tone, and even a high gain distortion. Different settings of the MID knob give boost, cut and scoop.)


    So I bought this from Zacsdad sometime ago. I never did too much with it. So the time has come to change things around and make it MUCH more versatile. I believe this is the BitMo Mod :bowdown:

    Most of this is stolen from freestomboxes.com

    Parts list:
    -50 picofarad ceramic axial capacitor
    -.47 microfarad polypropylene capacitor
    -.0047 microfarad capacitor
    -.022 microfarad polyester capacitor
    -Four wires
    -3 way switch DPDT ON/OFF/ON

    My work is a bit sloppy on this one...but ohh well. It works.

    EDIT: Clip added - http://www.soundclick.com/player/single_player.cfm?songid=11444411&q=hi&newref=1

    This is your basic diagram on it:
    c1b69ce147837dce884070b8782409e4.png

    My pics:
    3b9a42f4176a58214d185eb0f8b924c7.jpg
    7c8922c2040c17e106d2373bed46c245.jpg
    e7cd6b6ba9f06611d5c05d6722a0cf4b.jpg
    79c8399c191efbe0a741d46bc1dc082d.jpg
    9ce20323d4335b98b4ce11f6724c8d14.jpg
     
    RockenRick, Sinster, rambleon and 8 others like this.
  2. bluesking55

    bluesking55 Well-Known Member

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    Thats not sloppy, good job always wanted to try 1 of those
     
    slaveunit likes this.
  3. andrewsrea

    andrewsrea Well-Known Member

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    Not bad!

    I am surprised to see that its loaded with integrated circuits, for a 'tube monster' pedal.
     
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  4. NCgeek

    NCgeek Well-Known Member

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    Nice work!

    I have one as well and was thinking of mod'ing one day. Is that the orig valve in there, as I've read that just upgrading it makes a good size diff?

    How do the new 3-positions sound compared to the orig sound?
     
  5. slaveunit

    slaveunit Well-Known Member

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    Yea its the original. I hear it makes a big difference too. I just haven't gotten around to changing it. With as many pedal as I have I always find that I like the tone of an amp head with nothing else the best.

    It's been so long since I tried it I don't really remember what the orig was like. I dont remember hating it though. The top and middle position have a different sound but not really a crazy dramatic difference. But I like them both. the bottom position seems to kill most of the mids. Im not sure if the mids pt even does anything when in that position...maybe a tiny bit but its barely audible. Maybe that is the "scooped" tone.

    I only played with it after I was done for about 15-20 on my Blackheart 15 watt. But keeping the drive low on the amp and using the top 2 positions its become a pretty usable pedal.

    If you get the parts from ebay its going to run you less than $5 to do. That will leave you with parts left over. If you get them from Bruce at BitMo its $33.

    It's also hard to explain tones. I hear people rave about gear that I think is junk with junk tones in here. Everyone has different playing styles...different pickups...different amps...different guitars. So I can't realyl say GO DO THIS...YOU'LL love it. But I do think it is better than stock with this mod.
     
  6. zacsdad

    zacsdad Well-Known Member

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    nice job man! :thumbup:
     
  7. tvvoodoo

    tvvoodoo Well-Known Member AGF Registered Dealer

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    Good modding, and really nice pics. A few clips would make this thread complete...
     
  8. macrocket

    macrocket Well-Known Member

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    That looks like a pretty decent pedal. Does it run pretty warm or does running off low-voltage keep the temp down?
     
  9. slaveunit

    slaveunit Well-Known Member

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    For tvvoodoo...COMPLETED

    Ok so this was quick with a Tascam recorder. I really had the mic too far back from the speakers IMO. I really shoulda used another guitar too but this was right here in front of me. I know Dimarzio X2Ns are a bit too much for Rock N Roll. Thats why it may sound a bit too hot.

    Gear:
    BC Rich Zoltan Bathory Signature ASM Hardtail - Dimarzio X2N (bridge) Dimarzio Super 2 (neck)
    Blackheart BH15H Handsome Devil Head
    Avatar 2x12" cab with Eminence Legend Speakers V12 Custom OEM 16 OHM model

    Amp settings:
    Presence - 5
    Bass - 8
    Mids - 4
    Treble - 6
    Level - 5
    Drive - 2

    Pedal settings:
    Gain - 3.5
    Treble - 3
    Mid - 4
    Bass - 6
    Master - 8

    First is no pedal. Then the 3 way switch in the up...then middle....then down.

    http://www.soundclick.com/player/single_player.cfm?songid=11444411&q=hi&newref=1[hr]
    Maybe a bit warm..its a tube...but yeah...its not going to get real hot with the power going through it ... its a standard 9V.
     
  10. slaveunit

    slaveunit Well-Known Member

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    bump for sound clip added
     
  11. andrewsrea

    andrewsrea Well-Known Member

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    +1 for the middle tone! Sounds sweed - great job!
     
  12. Zyggo

    Zyggo New Member

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    I just received Breed's version of this modded VT999. I am glad to have a chance to check this thing out.

    Your sound clips speak for themselves. Those are exactly the sounds I'm getting and I'm smiling.

    Yes, the mid tone control is very sensitive in the middle toggle position and like nothing at all in the bottom toggle position. I forget which exact tube Breed put in but in the middle toggle with gain just under half, bass, treb at center and middle boosted --- Nice! Very, verrry, nice!

    I promise clips!
     
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  13. budwen stevie

    budwen stevie Well-Known Member

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    Modding mine is my next project!:thumbup:
     
  14. stevebway

    stevebway Metaphysician & Ham

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    Nice piece of gear.I bet its great recorded because you won't have to roll off lows.It's all comin' at ya.
     
  15. gemather

    gemather New Member

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    40bae8a28eaa27f4dcd5881edddfdd3c.jpg
    I found a foto with different wiring on the middle pot.
     
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  16. fullonshred

    fullonshred Well-Known Member

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    Interesting necrobump first post gemather. Nice picture ( we like pictures here). Welcome to AGF. : )
     
  17. snarph

    snarph Well-Known Member

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    I have one with the bitmo mod world of difference before it was nothing but an irritating paper wait

    I actually like it a lot not with the mod
     
  18. Flipp

    Flipp New Member

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    Hey, they gave me this pedal for some time, its sound like everyone I did not like, I decided to replace him the valve by a 12AX7A-C RT001 of the TAD brand, the truth esque greatly improved the sound but still does not convince, then found your Mod and decided to get down to work ... what was my surprise when I found a diference detail in my model because it leads 16v capacitor 100uf the valve plate that yours does not carry ... anyone know if the mod can break or not sound like it should for this detail? Then my intention was to do with capacitors that I have at home in tone gain 1 of 50pF something happens if I put one of 104pf?


    PD: if I put a capacitor 50v 100uf and the valve will heat up plus ??? ... xDDD

    Thanks and regards!!
     

    Attached Files:

  19. Andy Barnowsky

    Andy Barnowsky New Member

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    Hi everyone,

    after I found this Forum, I had the urge to mod my Vt999 too!

    It worked great and really improved the tone!

    I used a 56 pF ceramic condensator instead, but that makes little difference I think.

    Everyone able to solder should definitely try out this mod.
    The parts cost about 5$ and it makes the pedal a real vintage tone king!

    Greetings,
    Andy
     
  20. golem

    golem Well-Known Member

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    Welcome! How's the weather in Germany? I'm heading there tomorrow!
     

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