Hendrix's early Marshall Plexi amp...

Discussion in 'Let's Talk Vintage' started by Nik Henville, Sep 23, 2019.

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  1. Nik Henville

    Nik Henville Well-Known Member

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    Hmm...
    Deepinder Singh Cheema asked recently:-

    "Whatever happened to Jimi's first Marshall plexi that roadie Eric Barrett sold off in Mansfield at the Carlsbro place (with a load of other gear, to pay some folk's wages...) to a 14 year old for £70 after a two-week run of an advert in Melody Maker?"

    Anybody know?
    :hippie::pirate::uk:
     
  2. 378wby

    378wby Member

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  3. Seanxk

    Seanxk Member

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    Looking at the guts, http://www.amparchives.com/folder/458/
    It has what looks like the 3H choke as opposed to the 20H RS version, must be very close to the period where they changed I presume.
     
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  4. AlvisX

    AlvisX Well-Known Member

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    Fun stuff
    THAT's how ya make 'em
    Love it , shared cathode
    Can you guys read the value of that green coupler. Im guessing .022 ? Looks like some of my sh*t
     
  5. Nik Henville

    Nik Henville Well-Known Member

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  6. 378wby

    378wby Member

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    upload_2019-9-23_13-13-12.png
     
  7. neikeel

    neikeel Well-Known Member

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  8. 378wby

    378wby Member

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    Unreal Neikeel. Speechless
     
  9. Seanxk

    Seanxk Member

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    Superb Neil, there's so much on the forum here, sometimes it's great for us newbies to push some already done topics and get the collective bonus.

    Did you get those super high Plate Voltages on this beast, 560V !! i seem to remember.
     
  10. neikeel

    neikeel Well-Known Member

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    Yes. The PT has dual secondaries so you can choose the 560v or around 500v IIRC. I stuck with 560 as it sounds best to me.
     
  11. purpleplexi

    purpleplexi Well-Known Member

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    The webpage doesnt seem to have been updated for a long time. Is there any info on what's happening with the amp these days? I'd pay good money to plug into that for an hour....
     
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  12. Uumalmuhay

    Uumalmuhay New Member

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    I just got my 1974X Final Curtain last Friday. I also have a 68 Deluxe Reverb Reissue. I played Peaveys all through the 80s and 90s (I was poor) and Line6 from the early 2000s til last year when I bought a DSL40C, my 1st tube amp. I LOVED it!!!
    So I got the Deluxe Reverb last year and the 1974X last week.
    They are so unforgiving its unreal. I learned what a lousy guitarist I am!
    I want to sound like Hendrix/Page/Srv/ Angus etc.....
    Do I have the equipment to pull it off? I also have a fairly well rounded pedal board, but it seems like a SIN to plug it to the Deluxe OR 1974X.
    Am I on an fool's errand with these amp choices to attain the 'tone'? Or do I just need to grind it out and work on my skillz?
     

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  13. Nik Henville

    Nik Henville Well-Known Member

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    Did 7026 sell in a Christies auction of Popular Culture Rock & Pop Memorabilia, 10th July 2008 in South Kemsington, London for £25,000 (then US$49,475) to a "Private Buyer" in the USA ??? If so, they're probably on here someplace...

    :hippie::pirate::uk:
     
  14. purpleplexi

    purpleplexi Well-Known Member

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    Not a bad investment then....
     
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  15. Ned B

    Ned B Active Member

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    I believe that auction did happen. I used to have a link to it. I don't believe the amp has surfaced or been sighted since.
     
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  16. Metroman

    Metroman Well-Known Member

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    www.richdickinsonsdf.co.uk › hendrix_amp

    Also Many people Speculated that Jimis amp were Heavily Modded... All Hogwash.

    The only mod he had was done to the Tone Stack and this Mod became the Standard Mod on the later 1967-68 EL34 based Plexis. 10,000 and 12,000 Series.

    It was also thought that the KT66's were swapped out for 5881's. NOPE.


    A modification Jimi Hendrix used to carry out on all his Marshall 100w amps was to change the tone stack to a 33k/500pf resistor and capacitor combination, provided the amp didn't already have this tone stack. This rumour was verified when the owner of the JTM 45/100 used extensively by Jimi Hendrix was given to Marshall by a Mr. Dickinson who bought the amp after Jimi's death, and it was found to contain this sole modification

    West Coast Organ did the mods to Hendrix later 60s USA touring amps, and did several mods, and changed the power tubes from EL34, to 6550s.

    Hendrix retired the 66 #7026 JTM45/100 from touring in 68 because he was scared it would get damaged, or stolen, but was used extensively throughout his career in the studio. It was his favorite amp.

    West Coast Organ Mods by the guy that did them.

    http://forum.metropoulos.net/viewtopic.php?f=33&t=43932
     
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  17. purpleplexi

    purpleplexi Well-Known Member

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    And there I was thinking he got his tone by using those curly cables.....
     
  18. tomsvintage

    tomsvintage Well-Known Member

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    Love Jimi !! This JTM45/100 should be biased and running soon. The restoration pics are in another thread. I will post a video when it is done. I'm curious about the tone stack to a 33k/500pf resistor and capacitor combination mod.

    I would love to hear some more similar amps with EL-34 / 6550 and KT66's. I'm running 6550's in my other JTM45/100. It's loud and clean with a nice growl and bloom when opened up ! Quick to jump to harmonic feedback. KT66 1 ok.jpg
     
    Last edited: Oct 24, 2019
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  19. neikeel

    neikeel Well-Known Member

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    Have you modded the amp to cope with the lower grid leak resistors you have to use with 6550s?
     
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  20. tomsvintage

    tomsvintage Well-Known Member

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    internal.jpg
    neikeel, I'm not sure if that was done. Greg Germino restored the JTM45/100 amp pictured above and used some TAD 6550's. Greg said that they were good new production tubes that could handle the voltage. He would know about the other components. It sounds real nice though.
     
    Last edited: Oct 25, 2019

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