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So this just happened when I was troubleshooting noise on my live amp...

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  • So this just happened when I was troubleshooting noise on my live amp...

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ID:	914406Ugh, The night was going so good. I was troubleshooting some noise issues, so my amp was live. I’d been able to isolate and solve it to almost zero background noise. But there were some final things I wanted to investigate.
    So I was reaching for some parts on the shelf over my bench; and as Im moving this small parts bin aside; these fuckers come flying down from the 3rd Rope like they were Superfly Jimmy Snuka. Before I knew it, they all managed to land right inside my live amp.
    As soon as I could I reached around and killed the power.....
    ugh. But Im calling it a night. Ill assess any damage tomorrow, as I pick up the pieces, literally.
    If I have a 50% chance of guessing the right answer, I guess wrong 80% of the time.

  • #2
    Whoops! At least is looks like the problem, if any, will be at the lower power end, not the mains input end. Good luck.
    Support for Fender, Marshall, Mesa, VOX and many more. https://jonsnell.co.uk

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    • #3
      Nothing terrible happened to the amplifier because the main cable was disconnected from the mains.
      Just turn the chassis 180 degrees, so that the parts that landed in the amplifier fall out, and everything will be as before.
      Who does not know and knows that he does not know - teach him Confucius)
      Who knows and does not know that he knows - wake him Confucius)

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      • #4
        I'm sure it's ruined and almost valueless now. I'll buy it for parts, say, fifty bucks? I'll even pay shipping. I'm certain this is the best solution.




        "Take two placebos, works twice as well." Enzo

        "Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas

        "Being born on third base and thinking that you must have hit a triple is pure delusion!" Steve A

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        • #5
          AC main cable not connected to amplifier, just a little chaos on the bench whom needs to be put in order.
          Fifty dollars and pay for shipping Click image for larger version  Name:	Razmislja.gif Views:	0 Size:	428 Bytes ID:	914436
          Who does not know and knows that he does not know - teach him Confucius)
          Who knows and does not know that he knows - wake him Confucius)

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          • #6
            Originally posted by vintagekiki View Post
            AC main cable not connected to amplifier, just a little chaos on the bench whom needs to be put in order.
            Fifty dollars and pay for shipping
            He did say the amp was live when it happened. He then powered down and, I assume, he then unplugged it.

            My offer stands

            "Take two placebos, works twice as well." Enzo

            "Now get off my lawn with your silicooties and boom-chucka speakers and computers masquerading as amplifiers" Justin Thomas

            "Being born on third base and thinking that you must have hit a triple is pure delusion!" Steve A

            Comment


            • #7
              Originally posted by vintagekiki View Post
              Nothing terrible happened to the amplifier because the main cable was disconnected from the mains.
              It was connected and turned on at the time.
              Originally posted by SoulFetish View Post
              they all managed to land right inside my live amp.
              As soon as I could I reached around and killed the power.....
              "Everything is better with a tube. I have a customer with an all-tube pacemaker. His heartbeat is steady, reassuring and dependable, not like a modern heartbeat. And if it goes wrong he can fix it himself. You can't do that with SMD." - Mick Bailey

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              • vintagekiki
                vintagekiki commented
                Editing a comment
                I'm sorry, I didn't pay attention to detail

            • #8
              Originally posted by Chuck H View Post
              My offer stands
              50% is an agreed deal. Click image for larger version

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              The offer is highlighted, only SF to pack and ship.
              Fifty bucks is fifty bucks. Better something than nothing.
              Who does not know and knows that he does not know - teach him Confucius)
              Who knows and does not know that he knows - wake him Confucius)

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              • #9
                Ha, had something fall into an amp I was working on the other day.

                Luckily it didn't land on anything dangerous.


                If anything you probably just blew a fuse if something shorted.

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                • #10
                  Originally posted by Chuck H View Post
                  I'm sure it's ruined and almost valueless now. I'll buy it for parts, say, fifty bucks? I'll even pay shipping. I'm certain this is the best solution.





                  Chuck, you wouldn’t want this amp. It uses EL84s
                  If I have a 50% chance of guessing the right answer, I guess wrong 80% of the time.

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                  • #11
                    IF it were an SS amp it would be toast but being a tube one: very little possible damage , if at all.
                    probably works fine as is.
                    Juan Manuel Fahey

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                    • #12
                      Originally posted by J M Fahey View Post
                      probably works fine as is.
                      Just fire it right back up with all those parts in there like that? Probably the Mojo this amp needs

                      As an aside, before this happened, I was probing around different nodes with a shunt capacitor. I found that one of my 100k plate load resistors was causing %90 of the instability and noise issues.
                      It almost sounded as if every tube I put in that position was extremely microphonic and noisy.
                      But what's strange is that it was a new, modern 2W carbon film cap (I pretty sure it was a Multicomp). Has anyone else had a problem with these resistors in the past?
                      I was very skeptical that it was the problematic, but I swapped it out for a venerable old 120k/2W ECG metal film resistor (Corning). The big blue ones. Remember those? They're huge for 2W resistors by today's standars, but I loved those things. Plus,... I think they sound good (there. I said it.)

                      edit: this is the Phillips/Corning resitor
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                      If I have a 50% chance of guessing the right answer, I guess wrong 80% of the time.

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                      • #13
                        Blue isn't just the fastest colour.
                        "Everything is better with a tube. I have a customer with an all-tube pacemaker. His heartbeat is steady, reassuring and dependable, not like a modern heartbeat. And if it goes wrong he can fix it himself. You can't do that with SMD." - Mick Bailey

                        Comment


                        • #14
                          Originally posted by SoulFetish View Post

                          Just fire it right back up with all those parts in there like that? Probably the Mojo this amp needs

                          As an aside, before this happened, I was probing around different nodes with a shunt capacitor. I found that one of my 100k plate load resistors was causing %90 of the instability and noise issues.
                          It almost sounded as if every tube I put in that position was extremely microphonic and noisy.
                          But what's strange is that it was a new, modern 2W carbon film cap (I pretty sure it was a Multicomp). Has anyone else had a problem with these resistors in the past?
                          I was very skeptical that it was the problematic, but I swapped it out for a venerable old 120k/2W ECG metal film resistor (Corning). The big blue ones. Remember those? They're huge for 2W resistors by today's standars, but I loved those things. Plus,... I think they sound good (there. I said it.)

                          edit: this is the Phillips/Corning resitor
                          Click image for larger version

Name:	image_51938.jpg
Views:	97
Size:	97.3 KB
ID:	914496


                          Yikes, what's with those component leads sticking way out?

                          Work in progress?

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                          • #15
                            Look at the wider photos in post #1. Those leads are from unused parts that fell into the chassis.
                            Education is what you're left with after you have forgotten what you have learned.

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