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Blue Utah's

Discussion in 'Amp Central Station' started by Outcaster, Apr 30, 2014.

  1. Outcaster

    Outcaster Tele-Holic

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    Another thread had a couple of folks mention that they'd rarely if ever seen any blue Utah speakers. I did some searching and have found precious little info on Utah speakers at all. I've got one dating from '68 I think in my '65 BFDR (could be '58???). I'd assumed it came out of a quad reverb or perhaps a pro reverb but seems those Utah's were all black. Only marking other that the EIA is V12PXC47 which I assume is the model number. I'm just wondering where it may have come from and whether it's a ceramic or alnico speaker. Any way to tell the magnet type? Any Utah history out the on the web?
    I'm happy with the speaker but have never had anything else in this amp
     

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  2. scrapyardblue

    scrapyardblue Friend of Leo's Silver Supporter

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    Don't know about the blues, but the Utah's I had in my 68' SR were some of the sweetest sounding I've ever heard. Of course, the amp didn't hurt either.

    Shoulda' never lent it to my nephew.
     
  3. Wally

    Wally Telefied Ad Free Member

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    It looks to be a ceramic magnet. I can't recall ever having seen that color of blue on a Utah.....never in any FEnder for sure as OEM. That speaker you have is painted in a popular color of the mid-late
    '60's...Chevrolet called it Marina Blue.
    I have an Alnico Utah 15" with a code of 328217 and a model number of
    V15SP1 stamped on the edge of the frame. IT is a beautiful silver-blue grey kind of color.
     
  4. Mr Ridesglide

    Mr Ridesglide Friend of Leo's Silver Supporter

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    I have one as well. Can you find the date code on the rim ? You can see it on this photo. Can't quite make yours out..

    Mine says 328420 -
    the 328 is Utah - the 420 is the year; either '64 or 74', and the 20th week of that year - my part number is 180-022-00 I think -
     

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  5. Outcaster

    Outcaster Tele-Holic

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  6. Mr Ridesglide

    Mr Ridesglide Friend of Leo's Silver Supporter

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    so probably made in the 39th week of 1968 i would imagine.. I haven't tried this out yet, glad you like yours!
     
  7. Custom Deluxe

    Custom Deluxe Tele-Afflicted

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    I have a 12" smooth coned blue Utah that has a alnico magnet in a tweed Champ that I have. Same color. I'll try to snap a picture.
     
  8. Outcaster

    Outcaster Tele-Holic

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    So is there a way to tell if the speaker has a ceramic or alnico magnet?
     
  9. muchxs

    muchxs Doctor of Teleocity

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    Blue Utahs come in late '60s electronic organs. Can't remember which organs.

    Yup. Round magnet with a flat black ring around it is ceramic. Square horseshoe magnet is alnico. Except... CTS, Eminence and Heppner built speakers with square ceramic magnets from the late '60s to 1980 or so. Same deal... flat black raised ring around the magnet structure is ceramic.

    There are also alnico slug magnets. Alnico slugs are round, no raised flat black ring.
     
  10. Mr Ridesglide

    Mr Ridesglide Friend of Leo's Silver Supporter

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  11. Outcaster

    Outcaster Tele-Holic

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    Perfect. That helps.

    Organ speak huh? Always liked that B3/Leslie sound. Not quite the same though I guess
     
  12. Johnny Cache

    Johnny Cache Former Member

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    I pulled one out of a Thomas Organ from the 60's.
     
  13. Sequimite

    Sequimite Tele-Meister Ad Free Member

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    I just bought a pair of Roberts reel to reel extension cabs containing blue Utah 8" alnico speakers.

    [​IMG]

    [​IMG]
     
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