Recent content by Deisel401

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    Preamp Tubes in MTS 20

    Thanks. Appreciate the help. :D
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    Preamp Tubes in MTS 20

    Hey there. ; } . I've been searching all threads for almost a full day trying to find the thread(s) explaining the purpose of the 3 preamp tubes INSIDE my MTS RM20. I know the p.t. closest to the power tubes is the P.I. Forgot what the other 2 are. And I'm going to experiment with a few...
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    FinallY !!

    One more thing I wanted to mention, with the JJ 5751 in the PI spot, i noticed no difference when changing the tube in the Input Gain spot. I switched from a JJ ECC81 to a Mullard 12AX7 for Input Gain, and heard no change. I read a post from Rob , if I understood correctly, you really don't want...
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    FinallY !!

    That's def tube porn !!! Thanks buddy . . . . And rblyn . . . I haven't purchased the JAN 5751 yet, due to funds. But I just got a JJ last week. To my ears there's a very noticeable difference. I wouldn't say less gain. Just smoother, tighter, the highs are no longer harsh in any way, and just...
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    FinallY !!

    Thank you Rob. Sounds like you just saved me a lot of trouble down the road. I've read about folks changing their transformers to Mercury Magnets. Perhaps the less than stellar stock transformer is the reason.
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    FinallY !!

    Finally smartened up and purchased a JJ 5751 per MattFigs advice. This is the 2nd biggest tone change I've experienced in the last 3 or 4 years. The 1st being a Plexi/SL+ module Scott Souter built for me. Most amazing Marshall tones I've ever heard !! Anyway, can't believe how clear and punchy...
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    I have to share....

    FRIKN WOW !!!!
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    P.I. Preamp Tubes tested and labeled by Groove Tubes

    Thanks Eyeball dude . . lol . . . I'm trying to get suggestions for the other 2 spots in the amp. I've read that some people like the Ruby HG+ in the Input Gain spot. That's a bit too much gain for my taste. It seems to me, for the Effects Loop preamp tube, you'd want a strong clean tube. So...
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    P.I. Preamp Tubes tested and labeled by Groove Tubes

    Hey Matt I ordered the JAN 5751. But I'm also curious what you're using in the Input Gain, and Effects Loop preamp tube spots. I just found out that the Mullard 12AX7's sound way more "muscular" and punchier in all 3 spots as opposed to my JJ ECC83's. I switched them out last night and I noticed...
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    RM50HB Serial #

    Thank you. I just sent you an email about your "FogLifter" board for my RM50. Am trying to figure out if I need the upgrade. But apparently this amp was sitting on a shelf at M.F. since July 2006. Thanks
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    RM50HB Serial #

    Could someone translate this for me please ? 0607R4008 Not sure which is the year.
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    Built an RM50 footswitch..

    Thank you very much !!! That's really cool of you to share this. Hopefully I can return the favor sometime.
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    P.I. Preamp Tubes tested and labeled by Groove Tubes

    Gonna def grab a couple of each asa i can. But, for the heck of it, i just put 3 Mullard 12AX7's in the amp and they sound really good. They are about 3 weeks old and I think they're pretty much broke in. I didn't really care for them in my module ( SG P/SL+). The module has a lot of Mid-Bite...
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    P.I. Preamp Tubes tested and labeled by Groove Tubes

    Great !! Thanks Mr. Fig. Appreciate the quick response. Just about ready to place an order for tubes from M.F. I've been reading ALL your tube advice for the last few days. Just got my RM50HB last week and am psyched as hell to start swapping tubes in accordance with your advice. You posted you...
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