1960 Center Volume 5G12 Brown Concert

Discussion in 'Amp Central Station' started by rw4951, Oct 7, 2018.

  1. rw4951

    rw4951 TDPRI Member

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    I recently picked up this really cool 1960 Concert. It's an early one, s/n 00488, making it one of the first 500 Pro, Bandmaster or Concerts made (they all used the same chassis & circuit board). It has all of the early brown 5GX series hallmarks:

    Pinkish-beige Tolex
    Tweed Oxstripe grille cloth
    No round-over on top of cab
    Center volume controls
    Lighter brown face plates
    5 preamp tubes
    Pulse Adj. hole on rear panel
    RCA speaker jack
    Early style brown foot-switch

    The best part is that these 5G12 Concerts used the same transformers as the Tweed Bassmans, which were being made concurrently. I've noticed that a lot of these early Concerts have "replaced" transformers. I can only guess that the iron usually winds up in a Tweed Bassman restoration. This one has all original iron.

    Going to be doing a restoration this one, as well as documenting the 5GX circuit for a few upcoming builds. Will post a few pics along the way...

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    Last edited: Oct 8, 2018
  2. BobbyZ

    BobbyZ Doctor of Teleocity

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    That is one seriously cool amp.

    Expecially for only $296.40. :)
     
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  3. Axis29

    Axis29 Poster Extraordinaire Ad Free Member

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    Kermit bought himself one sexy amp! (So did @rw4951!)
     
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  4. CoyotesGator

    CoyotesGator Tele-Meister

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    Wow!
     
  5. Crobbins

    Crobbins Friend of Leo's Ad Free Member

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    Nice!
     
  6. John E

    John E Tele-Afflicted

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    I had one and stupidly sold it. It was just a great GREAT sounding amp, and the vibrato was to die for. So trippy and cool sounding. Damn I miss that amp, good luck with it.
     
  7. schmee

    schmee Friend of Leo's

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    Wow, that's a great find. Got the alnico Jensens too!
     
  8. rw4951

    rw4951 TDPRI Member

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    Kermit dropped about $2400 for this rig, adjusted for inflation...
     
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  9. rw4951

    rw4951 TDPRI Member

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    The amp came with a Dec '59 and Jan '60 P10R, and (2) Jan '61 P10Q's. All (4) have bells. Research so far indicates that these early ones would have had (4) P10R's from the factory.

    The R's are original cones. The Q's have been reconed with some generic cones. Will send the Q's to Weber for correct ribbed, curved seam cones, PVC and felt dust covers.

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  10. dannyh

    dannyh Tele-Afflicted

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    Wow, great amp! Congrats!
     
  11. Old Tele man

    Old Tele man Friend of Leo's

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    The capped PULSE ADJ. was meant for adjustment of TREMOLO amplitude...but wasn't used in production...although some early models might have actually used it.

    Anybody got one with a pot in that location?
     
  12. Ringo

    Ringo Poster Extraordinaire

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    That's a very cool amp.
    I recently acquired a 1960 Vibrasonic which as I understand is a very similar amp maybe even the same circuit except it's a 1-15 combo.
    Unfortunately it appears that someone had robbed the original transformers and most of the caps.
    I found a local tech who gutted it and rebuilt it with as many original parts as possible. He did have to use some new transformers , when he got done it's a great sounding amp and though not as collectible as an all original, it should be totally reliable.

    I imagine the Concert 4-10 amp sounds great too, or will after you get it all done.
    IIRC I saw a video of Rory Gallagher using a brown Concert and maybe a tweed Bassman live, and it sounded great.



    My Vibrasonic amp has the center volume too.
    I have found it's kinda hard to get used to that after playing BF and SF Fender amps for so long, more than once I've reached over and turned up the treble meaning to turn the volume up.



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    Last edited: Oct 8, 2018
  13. theprofessor

    theprofessor Friend of Leo's

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  14. Viejo

    Viejo Tele-Holic

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    Rare as hens teeth.
     
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  15. Obelisk

    Obelisk Tele-Holic

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    The earlier Concert uses the same 45294 output transformer that a Bassman did, but both the power transformer & choke are different.
     
  16. teletimetx

    teletimetx Poster Extraordinaire

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    sweet... thanks for posting!
     
  17. David Barnett

    David Barnett Doctor of Teleocity

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    Envy.
     
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  18. Ricky D.

    Ricky D. Poster Extraordinaire

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    Be sure to get those caps serviced. If they are original or of uncertain age, they could blow out and take out your transformers.

    Seriously cool amp!
     
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  19. rw4951

    rw4951 TDPRI Member

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    Thanks, you are correct. Can't edit the original post. Tweed Bassman OT is 45249.
     
  20. rw4951

    rw4951 TDPRI Member

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    Roger that. The filter caps have been replaced with IC's of unknown age. I'm replacing them with new Spague Atom's. Cathode bypass and bias caps have also been replaced at some point. They will also be replaced with new Spagues.
     
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