Marshall JCM 800 Tube Swap

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  • เผยแพร่เมื่อ 18 พ.ย. 2024

ความคิดเห็น • 49

  • @DreadfulGooz
    @DreadfulGooz  3 ปีที่แล้ว +3

    I actually did a lot of trouble shooting after this video and uncovered that something is wrong with v4 and v5 of the preamp. New tubes in V5 cause the volume drop the old tubes in V5 will make the amp functional but just brings me back to square 1
    Gooz 🦖

    • @conradovai
      @conradovai 3 ปีที่แล้ว +1

      Yeah it sucks I understand your frustration, but sometimes that is the price of good juicy tube amp tone! I hope everything works out well for you bro!! Real shame the amp turn out to have issues!

    • @dalepiwek
      @dalepiwek 10 หลายเดือนก่อน +1

      Ever sort this out?

    • @DreadfulGooz
      @DreadfulGooz  10 หลายเดือนก่อน +1

      @dalepiwek yeah I did. I ended up having to get the Amp service twice but it's up and running and sounding great. It needed the capacitos changed and to be biased and had some other things wrong with it but it's finally back to sounding how it should.
      Gooz 🦖

    • @dalepiwek
      @dalepiwek 10 หลายเดือนก่อน

      Ive got an 85' 2204, 83' 4104 and a 69' 1987. I heavily mod them. Have u ever played a plate lit 4 stage?

  • @scottdahlberg4890
    @scottdahlberg4890 5 วันที่ผ่านมา

    Say Hi to Kevin if you get a chance. I love his work and his B.C. Rich guitars. He is a great guy.

  • @Gears9
    @Gears9 3 ปีที่แล้ว +1

    Volume drop usually means a tube blew. You can check if they are all glowing? Also not sure how difficult they made it to bias the voltage. -Should always bias new tubes, if it's set too hot they'll blow. Wonder if the crackling happens on the other channel(s) also.

  • @blacktoothfox677
    @blacktoothfox677 3 ปีที่แล้ว +3

    Wow man... those guitars at the end... jeez you got proper taste in axes

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว +1

      Thx my man. I love each one of these axes. Some more than others but I do love them all. I'm in the process of getting them all hooked up the way I like them.
      Gooz

    • @blacktoothfox677
      @blacktoothfox677 3 ปีที่แล้ว

      @@DreadfulGooz I saw the fabulous quilt Mockingbird, the stealth obviously, and a guitar very much after my own heart, the White Warlock. I had a wicked white warlock which followed me from age 18 & had interesting provenance... fucker got nicked (stolen) after a set at the Guildford Festival. I do honestly feel a pang of loss whenever I see a white one, specifically.

  • @scottdahlberg4890
    @scottdahlberg4890 5 วันที่ผ่านมา

    I hope you got it fixed. If not. Send it back to a authorized Marshall service center or the Guitarologist (Brad) here on TH-cam. He is a Master Tech and if he can't fit, then it can't be fixed.
    www.youtube.com/@Fixologist1
    @TheGuitologist
    That is his channel. I love messing with electronics and stuff since I was in first grade (born in '71). So sometimes he leaves me in the dust in the technical side. I took lots of classes on electronics growing up.

  • @smbmxdirt3427
    @smbmxdirt3427 3 ปีที่แล้ว +3

    Hope you get it all sorted out without having to spend too much money.

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว +1

      Thx dude. So far the seller is paying for the repairs so let's see what happens
      Gooz 🦖

  • @TheWolvesCurse
    @TheWolvesCurse 3 ปีที่แล้ว +1

    since you swapped the powertubes, you should bring it to a tech for setting the tube bias anyway, so have him take a look at the thing. these things are round about 40 years old, things age and break. hope you get it sorted out. good luck.

  • @louistorres
    @louistorres 3 ปีที่แล้ว +1

    @Dreadful Gooz bro, for real, that's just what it sounds like. Te lo juro! I should film my 1987 JCM800, thing is in mint condition. Sounds better now that it has the HotMod V2, but without it, it sounds like your 2210.

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว

      I'm getting a hot mod v2 as well I'm talking to the owner to get one.
      Gooz 🦖

  • @conradovai
    @conradovai 3 ปีที่แล้ว +1

    It seams to me a problem on the power section of the amp since the volume dropped, either the new tubes are faulty or a socket is broken, how did you bias the power amp tubes?

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว

      I actually did a lot of trouble shooting after this video and uncovered that something is wrong with v4 and v5 of the preamp. New tubes in V5 cause the volume drop the old tubes in V5 will make the amp functional but just brings me back to square 1
      Gooz 🦖

  • @chickencreekproductions
    @chickencreekproductions 3 ปีที่แล้ว +1

    A failing amp is no fun, so it sort of hurt to press thumbs up. How did it go? Did you get the beast back from tech in working order? Cheers // Wince

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว

      Hey my tech fixed it and it sounds great now but unfortunately as of last night it crashed again. This time I believe it's a simple fix I believe the fuse needs to be swapped out and then we should be good to go again.
      Check out how the amp sounds here when it is up and running.
      th-cam.com/video/aij308NPyH0/w-d-xo.html
      Gooz 🦖

  • @jcollell
    @jcollell 3 ปีที่แล้ว +2

    Hope you get your amp situation figured out 👍👍

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว +1

      Thx my man. I hope so too I'm dying to start tracking some music with that thing.
      Gooz 🦖

  • @hadleymanmusic
    @hadleymanmusic 3 ปีที่แล้ว +1

    Where do you order tubes? Tube depot?

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว

      Yeah it is literally called www.TubeDepot.com lol
      Gooz

  • @bossistheboss6996
    @bossistheboss6996 3 ปีที่แล้ว +1

    Did you bias the power tubes mate? Maybe a good idea, your tubes will last longer and your tone will be alot better if you do!! Mesa unless modded have a fixed bias but Marshall need that biasing!
    Give your sockets a spray with contact cleaner and push tubes in and out a few times as well (make sure head is off!)

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว

      Hey brother this was a matched set and it was Biased correctly. Also I did spray and clean the sockets (shown in another video) I figured out that it wasn't the power section luckily. It is an issue with the tube sockets V4 and V5. The head has been to a tech and I'm waiting to get it back. Hopefully I can get it back this week because I am dying to play the amp.
      Gooz

  • @paulio6679
    @paulio6679 3 ปีที่แล้ว +1

    Did you get the Marshall fixed Gooz?

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว +1

      Hey brother check out the new video I just put up. I just got the marshall back. And I'm loving it but it's still got a noisy effects loop so I'm going to try and see what can be done to fix that.
      Gooz 🦖

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว +1

      th-cam.com/video/kRVcQzbOazo/w-d-xo.html this is the one I'm talking about homie. I just got the amp back.
      Gooz 🦖

  • @ralphsorce
    @ralphsorce 3 ปีที่แล้ว +1

    sorry Gooz! You will get it worked out!

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว

      Thx bro the amp is with a tech now getting worked on so hopefully soon it will be back in action
      Gooz

  • @RayRay-pg3fx
    @RayRay-pg3fx 3 ปีที่แล้ว +2

    Bring the head in to a shop and have it biased and checked out. Who knows what was happening with those mismatched tubes in there? Or what someone may have done to "mod" the amp.

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว

      The amp is definitely stock but yeah I agree with you man. I think these mismatched tubes definitely played a role in how this amp currently is. The head had been at a Tech's shop for quite sometime now so hopefully it will be finished soon.
      Gooz

  • @Ghostman1846
    @Ghostman1846 3 ปีที่แล้ว +4

    Deoxit on the tube sockets first. With new power tubes you'll want to get it biased as well, but that shouldn't cause the volume issue you had. Could be a lot of stuff. Hated giving this video a like. Too sad man. Good luck! Check out the Marshall Forum too for some insights. I hate that place but all the Marshall tech nerds hang out there.

    • @Gears9
      @Gears9 3 ปีที่แล้ว +1

      It could cause a volume drop because if the bias is not set and is too hot it will blow a tube.

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว +1

      It actually wasnt the power section luckily. It is an issue with the tube sockets V4 and V5. The head has been to a tech and I'm waiting to get it back. Hopefully I can get it back this week because I am dying to play the amp.
      Gooz

  • @retodd13
    @retodd13 3 ปีที่แล้ว +1

    Yep sounds like a Marshall

  • @thebeaner687
    @thebeaner687 3 ปีที่แล้ว

    its gonna sound better if he retubes and re biases the tubes. i once
    bought a Mullard 12AX7 preamp tube that made my whole amp sound like an
    angry dog. I tried buying more but it was just that one tube that had
    that angry growl. The angry growl in the tubes wears out over time. Im
    telling you because the angry sound is synonymous with the JCM800.
    SovtekLPS tubes sound creamy( they smooth out the distortion) and EHX
    sounds very bright and sparkly. Mullard was the only one other than the
    stock Marshall Shuguang tubes that had an even amount of bass and
    treble, but not overly bright. JJ tubes should not be used on a Marshall
    in my opnion but before JJ tubes bought Ruby tubes out , i recommend
    Ruby Tubes for a warn clean sound. If you find tubes that create a
    distinctive sound such as a very angry sound, similar to Sum41 albums
    Does This Look Infected or Chuck album, you should not wear that tube
    out at all. you should just use those awesome tubes to record only. You
    can store them away until you need to record something. I recommend the
    new Mullards( CV4004 Good) and the Shuguang Marshalls branded tubes (huge
    amount of versatility and range). always ask for the tubes to be balanced and I think that 94 gain is too much. Gain in tubes around 91 is just perfect for 12AX7's. Every simgle tube sounds different and have different amounts of gain, i think everyone knows about the gain but what people dont know is that some tubes are more trebly and some are warmer with more bass. Gain will change the position of your Gain and Volume knob while Treble will affect your treble knob and if the tube is too warm it will affect your bass knob. the positions of all the knobs change when you change tubes. sometime instead of putting treble around 5 you might have to raise all the Treble, Middle, and Bass knobs by a factor of 2 or 3. Its all dependent on the tubes and the amount of gain. Some tubes can make it so that no matter if your using the treble position on the guitar it will sound as if your using the rhythm position. if you start tube rolling i recommendd you swap tubes and you put Pure Nickel strings on your guitar so you can get the pure tone. in other words test it with pure nickel strings and test to make sure there is a noticeable difference when you switch between bridge and neck pickups. I recommend vivatubes because tubes are still 20 dollars for a tube while other places the prices have gone up to 40 for each recently. once you test with nickel strings you can switch back to regular strings after testing the tubes.

  • @bobbyhavoc26262000
    @bobbyhavoc26262000 3 ปีที่แล้ว

    Did you bias it?

  • @wazupwazid
    @wazupwazid 3 ปีที่แล้ว

    I think you need to have the capacitors changed, and have the tube rebiased and you should be good

  • @IndyRockStar
    @IndyRockStar ปีที่แล้ว

    You didn't bias the tubes

  • @POLARIS2
    @POLARIS2 3 ปีที่แล้ว +1

    Didn't the guy who sold it to you say it all worked just fine? I'd want my money back.

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว +2

      Luckily he is beeing cool about things and is paying for the repairs

    • @POLARIS2
      @POLARIS2 3 ปีที่แล้ว

      @@DreadfulGooz oh! That's an excellent thing for him to do.

  • @maryblum8177
    @maryblum8177 2 ปีที่แล้ว

    Check out my comment on early one on this amp.

  • @chrisdigital
    @chrisdigital 3 ปีที่แล้ว

    I think you have a power supply problem

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว +1

      Hey man it actually wasn't the power section luckily. It is an issue with the tube sockets V4 and V5. The head has been to a tech and I'm waiting to get it back. Hopefully I can get it back this week because I am dying to play the amp.
      Gooz

    • @chrisdigital
      @chrisdigital 3 ปีที่แล้ว +1

      @@DreadfulGooz Broken solder joints on the sockets to the board most likely, at least that is fixable :)

    • @DreadfulGooz
      @DreadfulGooz  3 ปีที่แล้ว

      @@chrisdigital yeah man it looks like maybe the repair wasn't too crazy but let's see what the guy says. Hopefully he will get back to me tomorrow.
      Gooz 🦖