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  1. B

    "Real tube" overdrive pedals

    RADIAL HOT BRITISH!Rock n'Roll in a box.I play this in front of my '78jmp mkII.You can shape this thing any way you want.
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    mustard cap upgrade?

    I did a recap of the power supply and just left it at that.Giged last night with a tube screamer in front of it and came to the realization that I shouldnt change a thing.Cant get much better than that.
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    mustard cap upgrade?

    Thanks for the hepl guys.I like the sound of the amp just fine,but always wonderin about improvements.
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    mustard cap upgrade?

    Yea no doubt.Sometimes I think people cant stop messing with things even though they sound good already.Mabey its the "status"of saying"i have mustard caps in my amp.
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    mustard cap upgrade?

    Question....Is it worth it to replace the coupler caps in my '78 jmp 50 watt to mustard caps.I have seen others do this and say it sounds better.I have some white chicklet looking caps in mine which I am pretty sure they are stock caps.Just wonderin' if it is worth the time and $$$.thanks.
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    '78jmp humming loudly.Any suggestions on a fix.

    Thanks for the info Wilder.I am going to do that as soon as the Blackhawks beat the Flyers.By the way howd ya get so smart?
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    JMP 50w with kt88's bias question.

    You guys are freekin me out.I just bought a 78'jmp 50w non master with KT88's in it.The output trans in the amp has a marshall sticker on it that says El34 and 6550-USA right under it.
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    '78jmp humming loudly.Any suggestions on a fix.

    I recently bought this amp and it has kt88's in it.Sounded good until the noise came.Looks just like the amps in your pic.
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    '78jmp humming loudly.Any suggestions on a fix.

    Yea I should go over all the joints.Ive fixed a few like that,but didn't even think of that.DUH.
  10. B

    '78jmp humming loudly.Any suggestions on a fix.

    I have a '78 jmp non master that has a loud hum that changes when either volume is moved.the hum goes away when the 2nd preamp tube is removed.The tube has been replaced with a known good one and humm is still there.any sugestions?Thinking about going ahead and swaping the cans out anyway.thanks!
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    looking to put el34's in my sl-x

    That manual is killer.That wil help if the 5881's dont work out.
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    looking to put el34's in my sl-x

    I am thinking about trying a fresh set of tung sol 5881's before I mod the sl-x,but I love that el34 sound.I guess it wont hurt to try somthing different.I am probably goung to run a 2 amp system anyway.Sl-x dirty and superlead combo for my clean.Thanks wilder for your tech help.
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    looking to put el34's in my sl-x

    thanks for the info,much appreciated!I might try a fresh set of 5881's just to see if I like them.I'm used to the el34 sound though.
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    looking to put el34's in my sl-x

    hey I noticed that you have a flying v xlp.I have a explorer xlp,white with kayler trem.It has the gibson custom shop logo on the back of the headstock.the guitar was repainted though.I also just traded my 6100lm for a 78 jmp non master vol.Good swap?I guess.The 6100 scared me with all the...
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    looking to put el34's in my sl-x

    thanks for the info.I'll be checking out other threds to see if I can find anything.Oh yea the sticker does say 5881.
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    looking to put el34's in my sl-x

    i am wanting to put el34's in my sl-x.I also have a 900 with el34's in it.comparing them side to side they look almost identical as far as the power sockets and wiring goes.I havent checked the voltage yet on sockets,but just a quick glance at it and I noticed the resistors on the pin sockets...
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    kt77's in a 900 sl-x

    are kt77s a direct fit with a bias?looking to put el34s in my sl-x also.is there a kit for this or are the instructions on schematic heaven good enough.
  18. B

    newby

    hey,just decided to say hi to everyone.I'll try to get pics of my gear up later. my main gear is '79 artisan lp,81 custom shop lp,79 jmp master vol,78 jmp superlead,90s slx,jcm 800 cab w/greens.
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    best speakers for sl-x

    yea I play mainly hard rock.thanks for all the sugestions.Im thinking of swaping out the 5881's for el34's.I'm comparing my sl-x to my 900 with el34's and the tube socket wires are even the same colour.havent looked at the schematic yet,but it would be cool if it was already set up for this.I'm...
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    best speakers for sl-x

    hey just wondering if any of you have a suggestion for the best speakers for a sl-x.Right now I have a jcm 800 cab with greenbacks in it.I was wondering if another speaker might do it more justice.thanks for the sugestions.

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