Dating a Vibro Champ...with pics

Discussion in 'The Squawk Box' started by Mark V Guitars, Sep 20, 2017.

  1. Mark V Guitars

    Mark V Guitars バナナフライング... MLP Vendor

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    Picked this one up today. What a great sounding amp.

    Going by the date code on the transformer...assuming it's original, seems to date the amp at the 24th week in 1969. Am I correct? On second glance, the serial number on the chassis indicates 1970, so if the transformer has an earlier date and is original, it was prob an overstocked item from the prior year.

    2017-09-19 22.40.04.jpg
     
    Last edited: Sep 20, 2017
  2. Soul Tramp

    Soul Tramp Speaker Snob V.I.P. Member MLP Vendor

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    Fairly common to see components that are a year apart.

    That's a lot of corrosion on the OT. What's the rest of the chassis look like?
     
  3. Mark V Guitars

    Mark V Guitars バナナフライング... MLP Vendor

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    I haven't had time to pull it. I'll get to it today....I'm curious myself.
     
  4. Mark V Guitars

    Mark V Guitars バナナフライング... MLP Vendor

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    Here are a couple pics. Pretty clean I guess. Bunch of original caps in there...bet the Mallory caps are newish.

    [​IMG]
    [​IMG]
     
  5. cooljuk

    cooljuk Transducer Producer Premium Member MLP Vendor

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    Check all the trafo, pot and speaker code dates and, if they are original, the amp is no older than the most recent date you find.
     
  6. ricksepilp

    ricksepilp Senior Member

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    My first good amp was a brand new 73 Vibro Champ. I sold it to a guy in 1984 for $60 because I wasn't really playing anymore. Boy do I miss that amp now........
     
  7. sonar

    sonar Senior Member

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    The Mallory's don't look like "newish" 150's. I'd need a closer look, but they also appear to be original from first glance. Blue molds disappeared by '69-'70.
     
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  8. Mark V Guitars

    Mark V Guitars バナナフライング... MLP Vendor

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    Interesting. Do you need a better pic?
     
  9. davestp1

    davestp1 Senior Member

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    From the photo you posted in another post...The word "Amp" after the model went up until 72, the fender logo w a tail until 74 (it could have been replaced). So it is earlier than that. Drip edge was late 67 until late 69. As another poster said, it is no older than the newest codes. Check the serial number (superiormusic.com) the transformer and the pot codes, they are quite probably late 69. The original speaker as well if it is in there...The amp could be late 69 or very early 70
     
    Last edited: Sep 25, 2017
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  10. Mark V Guitars

    Mark V Guitars バナナフライング... MLP Vendor

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    So I went comparing online, and the caps do all appear to be original. Crazy. The only work done appears to be the clipping of the death cap, and the addition of the safety cord.

    Even the speaker appears to be original. Amazing how great the amp sounds.
     
  11. Mark V Guitars

    Mark V Guitars バナナフライング... MLP Vendor

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    Never dated an amp before.

    We're already on our honeymoon. :D
     
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  12. AllTheSound

    AllTheSound Premium Member

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    I totally get falling in love with a new amp, but dude..... :D Congrats on a great find!
     
  13. sonar

    sonar Senior Member

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    Fantastic!

    Old Fender amps that haven't been scr*wed around with are getting harder to find.

    If you need to replace electrolytics, fine. But keep the tone caps.
     
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  14. Left Paw

    Left Paw Senior Member

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    Is there no ink stamp on the tube chart? That's how we always dated them.
     
  15. Mark V Guitars

    Mark V Guitars バナナフライング... MLP Vendor

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    No. But with all the other date codes, seems like we've narrowed it down to 1970, but many pots as well as the transformers are dated from 69.
     
  16. davestp1

    davestp1 Senior Member

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    Ink stamps on the tube charts were gone by 1968. Very early silverfaces in 67 still had them but they were gone by 68.
     

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