Step away from the crack pipe...

Discussion in 'eBay Deals' started by Alex_SG, Nov 19, 2014.

  1. Alex_SG

    Alex_SG Well-Known Member

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  2. eS.G.

    eS.G. Well-Known Member

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    Crack no good.......
     
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  3. cybermgk

    cybermgk Well-Known Member

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    I'm thinking the seller is taking more along the lines of LSD or other hallucinogens. Cause the boy, he be trippin.

    10K USD, maybe.
     
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  4. Alex_SG

    Alex_SG Well-Known Member

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    Back in the day I took quite a bit of acid and mushrooms... But it never made me THAT delusional! :naughty:
     
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  5. 83 Blazer

    83 Blazer Well-Known Member

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    [ame=http://www.youtube.com/watch?v=WK9h4gRXX9o]Jousting Sticks - YouTube[/ame]
     
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  6. JohnnyGoo

    JohnnyGoo Well-Known Member

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    Whats the screen thing for on there ??? Ya i got no clue.the tuners ive never seen.can someone educate me on why this here geetar so special.i have no clue who Muse is.
     
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  7. smitty_p

    smitty_p Well-Known Member

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    It's a MIDI Screen Controller.
     
  8. JohnnyGoo

    JohnnyGoo Well-Known Member

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    Oh ok,thanks Smitty.i think i seen a gal on you tube playin such a beast.was one of those young gal guitars slingers and she was using it while she was playing.cant remeber her name but she got a few videos on you tube
     
  9. WavMixer

    WavMixer Well-Known Member

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  10. Alex_SG

    Alex_SG Well-Known Member

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    I can't get that page to load, Wav, but I assume it's some extremely ridiculously overpriced POI cap?
     
  11. Kris Ford

    Kris Ford Well-Known Member

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    No, seems to be straight up priced to me..if you are rebuilding or building a clone amp, or restoring vintage,some of these are absolutely critical...
     
  12. Biddlin

    Biddlin Well-Known Member

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    My oscilloscope and all the objective data I can find, say,"caps is caps."
     
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  13. Kris Ford

    Kris Ford Well-Known Member

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    On paper, maybe..but put Radio Shack caps in a vintage Marshall or Fender amp...
    There is a difference.
    Some of these vintage caps have dialectrics that are no longer made..
    If what you say is true, then you could replace all the caps in a JMP Marshall or a Blackface or Tweed Fender amp with Radio Shack caps of the same value, and it will sound exactly the same..
    Don't think so.
     
  14. donepearce

    donepearce Well-Known Member

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    Provided the values are the same, yes it will. The reason old caps tend to sound different to replacements is that they are no longer even in the same ballpark as a cap of the correct value. You don't hear them going off because the drift is so slow. But you certainly hear the difference when you put the right value in.
     
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  15. Kris Ford

    Kris Ford Well-Known Member

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    Not in real life...so why then isn't there just one maker for all caps, and why are certain ones preferred over others (of the same value) by some of the worlds top amp builders?
    I understand the theory, but there is a difference in components used..yes, even of the same value.
     
  16. donepearce

    donepearce Well-Known Member

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    There are plenty of reasons for choosing one capacitor over another. Size, working voltage, expected lifetime, temperature coefficient. But the effect of a capacitor on a signal (ignoring ESR, which you definitely can in any audio circuit particularly where valves are involved), is entirely down to the value of the capacitance.
     
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  17. Kris Ford

    Kris Ford Well-Known Member

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    From the Les Paul Forum..
    "A guy took various types of caps and measured their response through a range of frequencies with an oscilloscope. It showed that ceramics have a bit of an "s" shape, where the PIO's had a nearly perfect linear response through the frequencies. But so did orange drops."
    I believe, and have heard for myself that this S shape wave vs. the linear response has everything to do with the difference that can be heard...and the type of capacitance is what is responsible for this...yes it may perform the same function..but HOW it performs it is why there are differences..
     
  18. donepearce

    donepearce Well-Known Member

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    No you haven't. A capacitor in an audio circuit - typically used to couple two stages together - does not generate the kind of voltage across it that you need to generate this curve. It can only be forced in an artificial test situation. In fact the typical coupling capacitor has only DC across it. The AC is vanishingly small.

    There is a roughly S-shaped curve in a guitar amplifier, and it is the result of non-linear valves or transistors running with more-or-less no feedback.
     
  19. Kris Ford

    Kris Ford Well-Known Member

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    Why then do reissue amps sound nothing like the vintage? The amps built with NOS/tightly spec'd ORIGINAL COMPONENTS do? Ever heard of Metro Amps? Ask George Metropoulous. There is a reason why these caps are preferred..
    And why then, after replacing a ceramic 0.022uf cap, which had a hollow croak sound with the tone rolled down to 0, with a PIO cap, did the croak go away and sound ,for lack of better terms, smoothly nasally? Granted, I have no way of telling the actual value given the tolerance they're rated..but THIS is what I mean how I can tell a difference..because I've done the cap swap and actually prefer ceramics..I did not imagine this.
     
  20. donepearce

    donepearce Well-Known Member

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    It has long been known throughout every audio discipline that night-and-day differences vanish as if by magic when blind testing replaces sighted. The human mind is a complex and devious thing, and it does its best to fool you at every opportunity.
     

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