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Thread: 5150 help

  1. #1
    Eruption guitar08man's Avatar
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    Default 5150 help

    i usually play my 5150 through an effects processor (korg toneworks), but i felt that the tone was too compressed. I pluged my guitar straight into the amp today and the distortion was very very fuzzy. Not warm and creamy like eds tone. It sounded solid-state like. I looked back where the tubes are and snapped these photos.





    Im no amp expert, but it seems to me that the two tubes on the left seem to be , for a lack of a better word, "dimmer." Is there something messed up with my amp?

    Another problem is that I am running the 5150 head through a marshall 1960a cabinet. What input should i plug the speaker cord into. right now i have it in the 16 ohm speaker input.

  2. #2
    Atomic Punk sixstring's Avatar
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    Yep. Looks like you might have a couple bad tubes. As far as the ohms for the speakers, you can always go higher but not lower: I.E. - 8 ohm speakers, you can from the amp with 16 but not 4. Tribb, am I correct?
    [SIGPIC][/SIGPIC]


    "20 minutes (late to work)? Shit. Last year I woke up three weeks too late.
    My advice is to go for the alien abduction story. Look bemused, dishevelled and on the verge of tears as you recount your story of intrusive and degrading medical tests.
    Worked for me anyway. I still have colleagues asking me what it is like to fuck a green womanoid with seventeen breasts.
    Alternatively just walk in and inform everyone that alcoholism is indeed a disease and that they should be less judgemental and perhaps a little more supportive."
    - graeme on the addiction to this place.

    "something tells me that after the nuclear holocaust, there'll be twinkies, cockroaches, and a dave vs. sammy argument going on somewhere".
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    "in my best "saw" scary movie voice: "oh, yes, there will be beagles."
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    Eruption
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    hey, I just bought a used 5150 head and it only had the 2 outside tubes in it (duct tape covers the 2 middle slots, don't know what that's all about, maybe to help with volume?) and they are old, anyhow, I need to get 4 new tubes, what do you guys use/suggest?

  4. #4
    Atomic Punk sixstring's Avatar
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    It NEVER hurts to get all new tubes for a used amp like that, and, replace them all at the same time. It might not be a bad idea to take it to an experienced repairman so he can pick a set of tubes that are of very similar properties (called biasing, I believe). Hope that helps...
    [SIGPIC][/SIGPIC]


    "20 minutes (late to work)? Shit. Last year I woke up three weeks too late.
    My advice is to go for the alien abduction story. Look bemused, dishevelled and on the verge of tears as you recount your story of intrusive and degrading medical tests.
    Worked for me anyway. I still have colleagues asking me what it is like to fuck a green womanoid with seventeen breasts.
    Alternatively just walk in and inform everyone that alcoholism is indeed a disease and that they should be less judgemental and perhaps a little more supportive."
    - graeme on the addiction to this place.

    "something tells me that after the nuclear holocaust, there'll be twinkies, cockroaches, and a dave vs. sammy argument going on somewhere".
    - han valen, 6.11.04

    "in my best "saw" scary movie voice: "oh, yes, there will be beagles."
    - hatchetforce, 6.7.06

  5. #5
    Eruption mk5's Avatar
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    Default

    Quote Originally Posted by sixstring
    Yep. Looks like you might have a couple bad tubes. As far as the ohms for the speakers, you can always go higher but not lower: I.E. - 8 ohm speakers, you can from the amp with 16 but not 4. Tribb, am I correct?

    Actually, it's opposite. You can plug a 16 ohm cab into the 8 ohm jack (on the back of the amp), but not a 8 ohm cab into a 16 ohm jack.
    How open-minded do I have to be before my brains start spilling out?

  6. #6
    Eruption guitar08man's Avatar
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    can you go 16 to 16?

  7. #7
    Atomic Punk sixstring's Avatar
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    Quote Originally Posted by mk5
    Actually, it's opposite. You can plug a 16 ohm cab into the 8 ohm jack (on the back of the amp), but not a 8 ohm cab into a 16 ohm jack.
    Sorry - you're right. I'm a little frazzled today...
    [SIGPIC][/SIGPIC]


    "20 minutes (late to work)? Shit. Last year I woke up three weeks too late.
    My advice is to go for the alien abduction story. Look bemused, dishevelled and on the verge of tears as you recount your story of intrusive and degrading medical tests.
    Worked for me anyway. I still have colleagues asking me what it is like to fuck a green womanoid with seventeen breasts.
    Alternatively just walk in and inform everyone that alcoholism is indeed a disease and that they should be less judgemental and perhaps a little more supportive."
    - graeme on the addiction to this place.

    "something tells me that after the nuclear holocaust, there'll be twinkies, cockroaches, and a dave vs. sammy argument going on somewhere".
    - han valen, 6.11.04

    "in my best "saw" scary movie voice: "oh, yes, there will be beagles."
    - hatchetforce, 6.7.06

  8. #8
    Atomic Punk sixstring's Avatar
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    Quote Originally Posted by guitar08man
    can you go 16 to 16?
    Yes. That's the ideal situation.
    [SIGPIC][/SIGPIC]


    "20 minutes (late to work)? Shit. Last year I woke up three weeks too late.
    My advice is to go for the alien abduction story. Look bemused, dishevelled and on the verge of tears as you recount your story of intrusive and degrading medical tests.
    Worked for me anyway. I still have colleagues asking me what it is like to fuck a green womanoid with seventeen breasts.
    Alternatively just walk in and inform everyone that alcoholism is indeed a disease and that they should be less judgemental and perhaps a little more supportive."
    - graeme on the addiction to this place.

    "something tells me that after the nuclear holocaust, there'll be twinkies, cockroaches, and a dave vs. sammy argument going on somewhere".
    - han valen, 6.11.04

    "in my best "saw" scary movie voice: "oh, yes, there will be beagles."
    - hatchetforce, 6.7.06

  9. #9
    Eruption guitar08man's Avatar
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    another question: Could i use this amp for an hour show if i needed too, or is it in danger of exploding.

  10. #10
    Atomic Punk BREW CREW's Avatar
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    Quote Originally Posted by guitar08man
    another question: Could i use this amp for an hour show if i needed too, or is it in danger of exploding.
    THAT would be a cool effect!
    Just go for it!

  11. #11
    Atomic Punk sixstring's Avatar
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    Quote Originally Posted by guitar08man
    another question: Could i use this amp for an hour show if i needed too, or is it in danger of exploding.
    It probably wouldn't "blow up" (although that might me mighty cool to see) but simply fizzle out. An hour would probably be OK...
    [SIGPIC][/SIGPIC]


    "20 minutes (late to work)? Shit. Last year I woke up three weeks too late.
    My advice is to go for the alien abduction story. Look bemused, dishevelled and on the verge of tears as you recount your story of intrusive and degrading medical tests.
    Worked for me anyway. I still have colleagues asking me what it is like to fuck a green womanoid with seventeen breasts.
    Alternatively just walk in and inform everyone that alcoholism is indeed a disease and that they should be less judgemental and perhaps a little more supportive."
    - graeme on the addiction to this place.

    "something tells me that after the nuclear holocaust, there'll be twinkies, cockroaches, and a dave vs. sammy argument going on somewhere".
    - han valen, 6.11.04

    "in my best "saw" scary movie voice: "oh, yes, there will be beagles."
    - hatchetforce, 6.7.06

  12. #12
    Good Enough kowski's Avatar
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    Default

    Quote Originally Posted by bcgvh
    hey, I just bought a used 5150 head and it only had the 2 outside tubes in it (duct tape covers the 2 middle slots, don't know what that's all about, maybe to help with volume?) and they are old, anyhow, I need to get 4 new tubes, what do you guys use/suggest?
    With the two inside tubes pulled, the 5150 is a 60 watt amp...which is still almost as loud, but not quite!

    Check out http://www.eurotubes.com. Bob at Eurotubes sells JJ tubes, and he is a treat to deal with. You could get a quad of 6L6s or check out his quad with two 6L6s and two KT88s.

 

 

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