Dumb Question

Discussion in 'Amps and Cabs' started by massacre, Feb 19, 2017.

  1. massacre

    massacre Silver Supporting Member

    Messages:
    4,497
    Joined:
    Jul 15, 2016
    Hello,

    This may be a dumb question but my vintage tube amp has a 2-prong plug.
    Will my tone change if I update it to a proper 3-prong plug?
    Thanks.
     
  2. tonegangster

    tonegangster Silver Supporting Member

    Messages:
    3,197
    Joined:
    Apr 21, 2010
    Location:
    Ellis County, TX
    No, and it might just keep from burning your house down
     
    custom53, Wyzard and TEPR like this.
  3. davess23

    davess23 Member

    Messages:
    6,182
    Joined:
    Mar 18, 2006
    Location:
    Swampscott, MA
    The first thing a competent amp tech will do if you bring him a vintage tube amp is to recommend replacing the 2-prong death cord with a 3-prong.
     
    Wyzard and massacre like this.
  4. Shiny McShine

    Shiny McShine Member

    Messages:
    9,496
    Joined:
    Apr 10, 2005
    I think the bigger question would be "Is there tone after death?"
     
    Wyzard and massacre like this.
  5. Baxtercat

    Baxtercat Member

    Messages:
    11,823
    Joined:
    May 11, 2009
    Location:
    just west of Monterey, CA
    There's almost something to this. ;-)

    Fender went to 3-prong and look what happened.
     
    RussB and massacre like this.
  6. High/Deaf

    High/Deaf Member

    Messages:
    624
    Joined:
    Feb 29, 2016
    Location:
    Over, under, sideways, down
    No, but it might change the feel. Especially if you're sitting on it and plugged into an amp across the room.
     
    massacre likes this.
  7. massacre

    massacre Silver Supporting Member

    Messages:
    4,497
    Joined:
    Jul 15, 2016
    Thanks for the responses!
    Amp is only plugged in when I am playing it, couple hours maybe. Then I unplug it and put it away. One time I was playing and touched a light switch and got a little zap. Enough to get my attention lol but the amp sounds so good, I haven't changed it because I am afraid the amp will sound different. Amp gets good and warm but never hot.
     
  8. zenas

    zenas Member

    Messages:
    7,129
    Joined:
    Jul 1, 2011
    What kind of amp is it ?
    And no a properly grounded cord will not effect tone. With the exception of possibly getting rid of some back ground noise. But an amp old enough to have a two prong cord has other parts that'll make it noisy anyway. Like electrolytics about ready to blow.
    I like old amps as close to original as possible but grounded cords and fresh electrolytics, like they had originally.
     
    Wyzard and Baxtercat like this.
  9. massacre

    massacre Silver Supporting Member

    Messages:
    4,497
    Joined:
    Jul 15, 2016
    Amp is a Vega, model A-49. Pretty sure it's late 50s-early 60s, bone stock except for 1 orange drop. 6 watts. 1 tone 1 volume knob, tone knob is on/off switch. 1 5y3, 1 6v6, and 1 6sn7 for tubes.
     
  10. eolon

    eolon Silver Supporting Member

    Messages:
    453
    Joined:
    Aug 15, 2012
    Location:
    Northwest Ohio
    No, it won't change the tone of the amp. Some older amplifiers have the potential to develop ground loops when the line ground is added, and that can add noise floor. I have done lots of conversions, though, and creating ground loops is very rare.

    Best Regards,

    Don
     
    massacre likes this.
  11. candid_x

    candid_x Supporting Member

    Messages:
    8,496
    Joined:
    Jan 1, 2007
    Location:
    AZ
    I don't miss suavely stepping up to the mic and snapping my head back when my lips touched the mic. Such bad showmanship. Personally, I've never died from it, but by all means I'd update one if I had a 2 prong, especially since going on 72 with a weak heart and pacemaker.
     
    RussB, massacre, zenas and 1 other person like this.
  12. drbob1

    drbob1 Silver Supporting Member

    Messages:
    23,885
    Joined:
    Aug 9, 2004
    Well, to be fair, a 3 prong cord is NOT a guarantee that you won't get shocked. If the damn electrician wires a socket or two wrong, you can still end up with a relative difference in the charge of two amps and it'll still hurt. You probably won't die, though... I could joke that changing the cord could result in some of your mojo getting drained to ground thru the extra conductor, but it's too serious, I won't. Get the thing changed to 3 prong, and check the wiring in your house (or only plug ALL equipment into the same outlet).
     
    massacre, zenas and Wyzard like this.
  13. zenas

    zenas Member

    Messages:
    7,129
    Joined:
    Jul 1, 2011
    Glad to here the tube lineup is 5y3,6v6,6sn7. That means it's not one of those cheap things with no power transformer. Those can be really shocking.
     
    massacre likes this.
  14. copperhead

    copperhead Member

    Messages:
    586
    Joined:
    May 20, 2006
    Location:
    Canuckastan
    Jamming in the basement & the bass player was using the Old Traynor YBA 1 with the 2 prong plug , I was playing guitar & in close proximity of the bass player & the tuning machine/key of his bass touch the bare skin of my arm [​IMG] .It's been 20 years & I've yet to forget about that
     
    massacre and candid_x like this.
  15. massacre

    massacre Silver Supporting Member

    Messages:
    4,497
    Joined:
    Jul 15, 2016
    I do always use the same receptacle every time I play this amp. I will def check the receptacles in my house, I never checked them when I moved in.

    Thanks again for the responses!
     
  16. eolon

    eolon Silver Supporting Member

    Messages:
    453
    Joined:
    Aug 15, 2012
    Location:
    Northwest Ohio
    Reversed polarity is pretty common in houses where the homeowners have wired receptacles without knowledge of Electrical Code, and also in bars and other venues. A good outlet ground checker is a must, and they aren't expensive. You can also check them with a DMM. In older homes (<1970) sometimes there is no dedicated ground wire, and this can be just as bad. The only solution is rewire the receptacles, adding a dedicated ground. These are usually the wall outlets that have only 2 connectors in the receptacle, no ground pin. In the olden days when I was playing in bands, these were very common.

    Best Regards,

    Don
     
    massacre likes this.

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice