The Tube Screamer

Discussion in 'The Tone Zone' started by Steve Smith, Dec 8, 2019.

  1. Steve Smith

    Steve Smith Active Member

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    How did Maxon stumble across developing this basic little thing that just works so well with old amps?

    It's just a few cheap solid state chips in a pedal yet sounds as good as many rack valve preamp units

    Got a TS9, TS10 and had a TS808
    Photo0050[1].jpg
     
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  2. South Park

    South Park Well-Known Member

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    It is all in the clipping of the signal . The ts clips both sides of the sound wave.
     
  3. Steve Smith

    Steve Smith Active Member

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    Well hit me with a wet fish. Interesting Parky. So attack and decay you mean? I never thought of it like that

    Cheers dude :)
     
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  4. South Park

    South Park Well-Known Member

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    It is what the cf of the preamp does . The signal input is clipped from the cascade stage the top only. It goes to the cf and inverts the signal now both sides are clipped .
     
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  5. pedecamp

    pedecamp Well-Known Member

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    I just picked up a brand new ts9, it is a super pedal, sounds great and feels like its built like a tank very hefty in my hand. Looking forward to spending more time with it. :yesway:
     
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  6. Steve Smith

    Steve Smith Active Member

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    Sorry mate, I have a decent understanding of electronics and acoustic principles but you are way above me now ha ha, complete respect man, honestly :):) My understanding of valve distortion is that the shape of clipping on the Scope is that the Sine wave bends slightly to the right and you get a little peak before a more steeper descent. I never got much further than working out RMS output on a scope output at college doing electronics for music tech. I am really interested in what you are explaining I promise. Can you dumb it down a bit. KR's :erk::erk:
     
  7. South Park

    South Park Well-Known Member

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    It is a lot to understand . Just take it in small pieces . That leading edge is real cool to see on a scope . Tubes and chips both clip. But tubes do a soft clipping. Sounds better
     
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  8. ricksdisconnected

    ricksdisconnected Well-Known Member

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    which team are you guys, Maxon or Ibanez and why?
     
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  9. mcblink

    mcblink Well-Known Member

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    Ibanez, just because that's what I know; nothing more and nothing less.

    I've actually used the Ibanez, zero experience with maxon

    So my opinion is quite useless in all reality. I just wanted to run my mouth, I guess lol
     
  10. Amadeus91

    Amadeus91 Active Member

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    Maxon, just like mcblink, because it's what I got and been so long
    really can't remember why I chose Maxon. Both have JRC4558D chips
    and the clipping diodes were changed to the blue striped ones.
    They were both modded by Keeley, one has the regular mod and the other has the Baked mod.
    [​IMG]
     
  11. WellBurnTheSky

    WellBurnTheSky Well-Known Member

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    Well, technically the first iteration of that particular circuit was the Boss OD-1, from which the TS is derived.
    But it's all incremental anyway, just like it was for amps: it went from using a transistor or a couple of them to amplify the signal until it went into clipping, to using diodes, to using several clipping stages (as is the case in the Big Muff), then using (then brand new) op-amps, and so on.

    They're one and the same, as Maxon was building the Ibanez up until the got reissued.
    Me, I'm using the Maxon, as it's what I've been using forever, and they've always worked for me. Back when I got my first one (in the late 90s), Maxon had just released it and it was true bypass (unlike the Ibanez), which was supposed to be a big deal.
    But they're pretty much the same.
    I've also built several variants of the TS and the OD-1, and honestly, it's pretty much one and the same circuit with mostly values variations, or different clipping. Which in the end doesn't make them THAT different tbh.
     
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  12. ricksdisconnected

    ricksdisconnected Well-Known Member

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    ive beard they were the same and know the Maxon/ibanez story.
    yet some folks swear to hear a difference.
     
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  13. BanditPanda

    BanditPanda Well-Known Member

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    Relatively speaking everybody's ears are unique!
    BP
     
  14. WellBurnTheSky

    WellBurnTheSky Well-Known Member

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    The miracles of psychoacoustics...
    People can swear they hear a difference where there is none measurable. The human ear is a pretty tricky machine...and very easily tricked, especially when the human around it wants to be tricked (aka is expecting to hear a difference) ;)
     
  15. Adieu

    Adieu Well-Known Member

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    Maxon did a bunch of cool stuff back in the 70s, a lot of it as an OEM supplier for Ibanez... AlNiCo 8 pickups, the TS circuit, etc.

    Somebody there clearly decided early on that they wanted to be innovators not knockoff artists or cost cutters
     
  16. ricksdisconnected

    ricksdisconnected Well-Known Member

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    well it worked out for them rather well.
     
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  17. wakjob

    wakjob Well-Known Member

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    This is why I stick my hands in live amps and change components in real time with lead clips all the while still having my guitar strapped on. :naughty:

    Of course, I know I'm outta my mind too, so...
     
  18. jimmyjames

    jimmyjames Well-Known Member

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    A very cool thing Maxon did was the Dry Z PAF clone pickup, which has a rabid cult following. Standard fitment to upper Greco Super Real LP copies. Their Super 70 pups had the A8s, and kick arse. PU-2s have a strong following, were in midrange Super Reals. I stripped down an old MIJ SS amp recently, kept the circuit boards in case I delve into electronickery later. Five 1979 JRC4558D opamps on 'em :naughty: (Evans Sound Creator EG-601...)
     
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  19. Amadeus91

    Amadeus91 Active Member

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  20. South Park

    South Park Well-Known Member

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    It is how you get the signal to clip . Thar are different ways to get thar . When you a find a pedal you like find out how it clips. What kind of circuit it is . A lot of pedals are clones.
     
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