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Spontaneous Amp recovery!

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  • Spontaneous Amp recovery!

    So, I thought it was my H2O pedal. Apparently not!

    Anyway, today I popped on my H&K TM18. The in/out fades of my H2O start happening with my Tech21 DLA. ^%$%#$!

    But...I collect my senses, turned everything on. Let it all warm up and ran through a serious trouble shoot.
    - Straight in - check
    - All channels - check
    - All wattages - check
    - Footswitch - check- FX loop - check!

    I have basically figured out that it just needs a couple of minutes of warmup!!! All good. If I slam it on and start playing...hinky weirdness.
    Last edited by Aceman; 05-11-2020, 07:05 PM.
    Originally posted by Bad City
    He's got the crowd on his side and the blue jean lights in his eyes...

  • #2
    Re: Spontaneous Amp recovery!

    It might not be, but odd cutting in and out on a tube amp is usually a tube going bad. It might be a good opportunity to get your tube rolling on...

    Good news that the pedals are all fine and the amp seems fine too.
    Oh no.....


    Oh Yeah!

    Comment


    • #3
      Re: Spontaneous Amp recovery!

      Sometimes solder joint and tube sockets become conductive after they warm up -be it a cold joint or tension fit.
      “For me, when everything goes wrong – that’s when adventure starts.” Yvonne Chouinard

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      • #4
        Re: Spontaneous Amp recovery!

        Cold Joint vs Tension Fit:

        Is either of those a tough/expensive fix if/when the time comes?
        Originally posted by Bad City
        He's got the crowd on his side and the blue jean lights in his eyes...

        Comment


        • #5
          Re: Spontaneous Amp recovery!

          Originally posted by Aceman View Post
          Cold Joint vs Tension Fit:

          Is either of those a tough/expensive fix if/when the time comes?
          Nope -in fact they are probably the 2 easiest.
          “For me, when everything goes wrong – that’s when adventure starts.” Yvonne Chouinard

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          • #6
            Re: Spontaneous Amp recovery!

            my Belair had a howl some years back
            touching the solder joints on the tube sockets with a hot iron solved the problem

            took longer to disassemble the amp than to fix it
            EHD
            Just here surfing Guitar Pron
            RG2EX1 w/ SD hot-rodded pickups / RG4EXFM1 w/ Carvin S22j/b + FVN middle
            SR500 / Martin 000CE-1/Epiphone Hummingbird
            Epiphone Florentine with OEM Probuckers
            Ehdwuld branded Blue semi hollow custom with JB/Jazz
            Reptile Green Gibson Custom Studio / Aqua Dean Shire semi hollow with piezo
            Carvin Belair / Laney GC80A Acoustic Amp (a gift from Guitar Player Mag)
            GNX3000 (yea I'm a modeler)

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            • #7
              Re: Spontaneous Amp recovery!

              I love it when a plan comes together

              Comment


              • #8
                Re: Spontaneous Amp recovery!

                I was soooo missing Guitar > H&K > VS Chorus/Delay.

                Shame I don't play much Rush. It would kill for that! Maybe I'll relearn Limelight or something...
                Originally posted by Bad City
                He's got the crowd on his side and the blue jean lights in his eyes...

                Comment


                • #9
                  Re: Spontaneous Amp recovery!

                  Freewill

                  Sent from my Alcatel_5044C using Tapatalk

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                  • #10
                    Re: Spontaneous Amp recovery!

                    Considering that it is a tube amp, yes, they need to warm up for a few minutes before playing through them. That's standard practice. Turn it on, leave it on standby.

                    Comment


                    • #11
                      Re: Spontaneous Amp recovery!

                      You running the effects through the loop? If so clean your jacks in the loop!! Fought that gremlin more than a few times!!
                      Guitars
                      Kiesel DC 135, Carvin AE 185, DC 400, DC 127 KOA, DC 127 Quilt Purple, X220C, PRS Custom 24, Washburn USA MG 122 proto , MG 102, MG 120.
                      Amps PRS Archon 50 head, MT 15, Mesa Subway Rocket, DC-5, Carvin X50B Hot Rod Mod head, Zinky 25watt Blue Velvet combo.

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                      • #12
                        Re: Spontaneous Amp recovery!

                        Everytime I perform a tube replacement, I always inspect the solder joints on the tube sockets, not only heat, but vibration can cause some sketchy behavior. There have been a couple of times where I have had to touch the tube socket solder joint(s) with a hot soldering iron.....

                        Comment


                        • #13
                          Re: Spontaneous Amp recovery!

                          My Randall RM50 does something very similar once in a while. That one ended up being in the fx loop. Every few months or so it will start gaining volume and then drop back down. It'll do it for a minutes, just up and down.

                          I have to get contact cleaner and spray all 4 effects loop jacks and cables, and run them in and out a few times while wiping the cable end.

                          It could easily be something else, but it's a good thing to check anyways. Doesn't cost you anything but a little time.
                          I think I took a wrong turn in Albuquerque...

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