WTB: Late 70's early 80's JMP 2203

Discussion in 'Member Classifieds' started by jhayat, Dec 16, 2019.

  1. jhayat

    jhayat Member

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    Hi. Looking to pick up another JMP 2203. No 50-watters, please. :)

    Looking for stock/all orig - no mods. Power cable change is ok!

    Will need pics of the inside, incl. clear, detailed pics of the PCB.

    Please send email to

    jeff at jeffreyhayat dot com

    Thank you!
     
    Trelwheen and custom53 like this.
  2. Trelwheen

    Trelwheen Well-Known Member

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    Have you checked on Reverb? They pop up fairly often
     
  3. jhayat

    jhayat Member

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    Every day :naughty:
     
  4. anitoli

    anitoli Well-Known Member

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    While not vintage a 2203X will put you in the same spot.
     
  5. Shae201

    Shae201 Well-Known Member

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    Prepare to spend about $1800, they have went up recently
     
  6. tschrama

    tschrama Well-Known Member

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    1980..1981 will have high HT. Stick to the mid, late 70s.

    just my 2 cts
     
  7. jhayat

    jhayat Member

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    What's HT?
     
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  8. StingRay85

    StingRay85 Active Member

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    Higher voltage over the output tubes
     
  9. jhayat

    jhayat Member

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    And this is bad? Or not as good as mid, late 70s? How come?

    Thanks!
     
  10. StingRay85

    StingRay85 Active Member

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    Cant answer that question. Some people like higher voltage, some lower. JMP early JCM800 has low
     
  11. jhayat

    jhayat Member

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    Thx. So, what's the difference? I am googling here, and I find:

    As a rough rule of thumb, the higher the voltages applied to the tubes, the more they are able to increase the signal passing through them, producing a higher signal voltage, assuming all else is handled correctly within the circuit. Higher signal voltages in the preamp tend to mean a tighter, crisper, more hi-fi tone. Higher signal voltage in the output stage means more power — higher wattage levels delivered to the output transformer and, as a result, the speaker.

    Lower voltage levels, as you might guess, tend to equate to less overall output power — yes, along with a somewhat “browner” sound, too — which means slightly easier breakup (quicker onset of distortion) and a little more grit and texture.

    Interesting. On paper, the lower volt seems like it would sound better, but I guess it depends on the guitar, p/u, playing, and cab as well.

    Cheers.
     

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