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T3 headlamps - all 12V?

Discussion in 'The Hokey Ass Message Board' started by Rem, Jul 13, 2010.

  1. Rem
    Joined: Mar 6, 2006
    Posts: 1,256

    Rem
    Member

    Am I right in thinking T3 lamp units are a '60s thing, and if so, then they would all be 12V? I have a pair of Guide-style headlamps with T3s and it doesn't say anywhere on them if they're 12V or 6V. I have some other General electric sealed beams that have 6v stamped on the back.

    It might be irrelevant anyway, as I tried one of the T3s on a 6V battery and it lit, but filled up inside with white smoke! A sign of being FUBARed anyway, or because it needed more volts to 'burn' correctly?
     
  2. mart3406
    Joined: May 31, 2009
    Posts: 3,055

    mart3406
    Member
    from Canada

    Yep. T3's - mid/late '60's, so 12V. Will light on 6V, but not
    brightly. White smoke = Toast.

    Mart3406
    =========================
     
  3. 32v
    Joined: May 20, 2007
    Posts: 952

    32v
    Member
    from v.i.

    mid 50's chevys had t3 bulbs
    wayne
     
  4. Tri 5 Chevy's were all 12 volt.
     

  5. Crestliner
    Joined: Dec 31, 2002
    Posts: 3,011

    Crestliner
    Member

    I have a few 6V T3s. Must have started in 53 or 54.
     
  6. TagMan
    Joined: Dec 12, 2002
    Posts: 6,150

    TagMan
    ALLIANCE MEMBER

  7. Rem
    Joined: Mar 6, 2006
    Posts: 1,256

    Rem
    Member

    Thanks guys. From TagMan's chart it looks like mine was a '68-'71 unit before it failed. As it turned out, the other light actually had a GE 6V sealed beam in it - shame they weren't both like that.

    Thanks for all the replies - hopefully we've all learned something from this.
     

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