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Thread: Mercury Transformers for Blues Jr.

  1. #1
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    Mercury Transformers for Blues Jr.

    Anybody swapped the PT with a Mercury? Is it a drop in or do you have to drill holes?

  2. #2
    Forum Member ziess's Avatar
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    Re: Mercury Transformers for Blues Jr.

    Did you blow the original?

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    Re: Mercury Transformers for Blues Jr.

    No, just curious. It says it's an upgrade. Though, I am not sure I know the benefits of a PT upgrade. I changed the OT to Mercury and definitely heard the difference.

    The amp has a buzz to it, which I would love to quiet down. Now that I think about it, the buzz gets louder when I kick on a tubescreamer in front of it. Is that from the strat, then? This is in a room in my house w/ no monitors on.

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    Forum Member Kap'n's Avatar
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    Re: Mercury Transformers for Blues Jr.

    A better transformer won't fix that.
    Several guitars in different colors
    Things to make them fuzzy
    Things to make them louder
    orange picks

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    Forum Member wingnut1's Avatar
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    Re: Mercury Transformers for Blues Jr.

    If you have true single coils in the Strat you will get some hum from it. The PT might raise the voltages and give you a little more clean headroom, but you aren't likely to see as much change as you did with the OT.

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    Re: Mercury Transformers for Blues Jr.

    It's the strat. yikes. I played an SG through the same setup, quiet.

    I just put it together from a box of parts and '69 custom shop pickups. I thought I had made a good effort at shielding it.

    Anyway, from my original quesion, seems like I won't notice anything signifcant from a PT swap.

  7. #7
    Forum Member NTBluesGuitar's Avatar
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    Re: Mercury Transformers for Blues Jr.

    Quote Originally Posted by NT DeVille View Post
    Anyway, from my original quesion, seems like I won't notice anything signifcant from a PT swap.
    Yep, all it's doing is providing AC to the various parts of the amp. A different PT under working conditions may differ slightly in regards to AC regulation and primary inductance under working loads, but that's about it.
    "...pray do not imagine that those who make the noise are the only inhabitants of the field;
    that, of course, they are many in number; or that, after all, they are other than the little,
    shriveled, meagre, hopping, though loud and troublesome, insects of the hour."

    -Edmund Burke

  8. #8
    Forum Member gooman's Avatar
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    Re: Mercury Transformers for Blues Jr.

    Buy a DRRI just kidding but I had 2 bj's and had the misfortune of trying out a drri from a recomend from the guyz in here and the bjr's were gone in a week or so.........

  9. #9
    Forum Member NTBluesGuitar's Avatar
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    Re: Mercury Transformers for Blues Jr.

    I was going to recommend a DRRI, but I didn't know if that was in the budget.
    "...pray do not imagine that those who make the noise are the only inhabitants of the field;
    that, of course, they are many in number; or that, after all, they are other than the little,
    shriveled, meagre, hopping, though loud and troublesome, insects of the hour."

    -Edmund Burke

  10. #10
    Forum Member wingnut1's Avatar
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    Re: Mercury Transformers for Blues Jr.

    DRRI and don't look back.

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    Re: Mercury Transformers for Blues Jr.

    A possible upgrade (although it is still a BJ) might be a DR OT...heftier iron, more headroom. A lot cheaper than a MM too.

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    Forum Member rudutch's Avatar
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    Re: Mercury Transformers for Blues Jr.

    Quote Originally Posted by ES350 View Post
    A possible upgrade (although it is still a BJ) might be a DR OT...heftier iron, more headroom. A lot cheaper than a MM too.
    I have one at home wating for me to install in a Pro Jr
    will advise
    do I look like I know what I'm doing?

  13. #13
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    Re: Mercury Transformers for Blues Jr.

    Thanks for the inputs. I did the swap and it is the last change to the amp. Don't want to tie up any more money in this one.

    Funny thing about your recommendation is that I sold a DeVille which was way too much amp and looked seriously at the DRRI before I bought this Blues Jr. I have been studying the classic circuits more and more, and it is also a fact that I just like to build stuff, so I think a amp build is in my future. Haven't decided which direction to go. I think I would really like a bassman.

  14. #14
    Forum Member rudutch's Avatar
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    Re: Mercury Transformers for Blues Jr.

    the 22w OT did make it louder and improved bass response.
    a cheap mod. The OT is now as big as the pt (which is unusual)

    note 1 - the grommet is small for all the primary leads
    note 2 - the mounting hole(s) don't line up

    http://store.triodestore.com/tf65wscta48o.html
    do I look like I know what I'm doing?

  15. #15
    Forum Member rudutch's Avatar
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    Re: Mercury Transformers for Blues Jr.

    add technical note - the stock speaker jack is the 'self shorting' or "if you are a dumbass and unplug the speaker plug the amp won't blow up as it shorts the output to ground" type.

    This is useful information when you decide to utilize the transformers 2nd output and add an additional 4 ohm output jack... I'll leave it at that
    do I look like I know what I'm doing?

  16. #16
    Forum Member thegeezer's Avatar
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    Re: Mercury Transformers for Blues Jr.

    Man I don't want to recommend a DRRI because everybody is buying them and I want to be special, LOL. Go with the DRRI.

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