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I knew this amp was good !

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  • I knew this amp was good !

    I had to tell someone and who better than the guys here who more than any other site helped me tweak my main build till i came up with what i thought was the ultimate high gain marshall. At least thats what i thought, but now i have some confirmation. I built one for a friend who raves about it to everyone, but that in itself didn't give me much confidence because he's just a home player and really has no idea how an amp works in a live mix. Anyways, he has a friend who has bought probably a dozen or more boutique amps over the last few years. My buddy is always telling me about this guy's latest acquisition. Money is no object to him. So my friend kept telling him about the amp i built for him and his friend asked to borrow it. Long story short, my friend just called me and told the guy flipped out over the amp and that his bandmates did as well. He wants me to build him one now. Granted, it's just one mans opinion, but from a guy who's owned a ton of high end boutique amps thats a pretty nice compliment IMO.

    I must say, as good as i thought it was i really needed that confirmation from someone else to know it's not just me. After all, i've lived with this amp for about the last year and at this point the amazement wears off and i'm often left wondering is it really THAT good. Of course all it takes is to plug into other amps with big reps to realize it really is. I have mostn recently played thru a bogner and suhr badger, and i see mine as being easily better than those. It amazes me because i'm no tech and i shouldn't have been able to create something that sounds in the same league as these world class builders. But i guess if you have ears, drive, a little knowledge, and access to people like you guys it's not at all an impossible task, in fact just time consuming. Chuck, tubewell, Merlinb, cbarrow7625 and others here have been so helpful that i can't thank you guys enough. My ears guided me to the tone this amp makes, but you guys are responsible for helping me find ways to make that happen. Anyways, i just had to share my excitement, and who better to tell than youse guys.

  • #2
    Well, good for you! It's nice when something you build yourself makes you smile. Even nicer when a little validation comes your way from other users. Can you spoil it a little and let us see a schematic?
    Black sheep, black sheep, you got some wool?
    Ya, I do man. My back is full.

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    • #3
      I don't have a current one, but in some of my old threads there should be links to older schematics. But i have since made a lot of changes and have yet to update it.

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      • #4
        I really love that freshly de bugged tube amp tone
        especially when its homeade

        Kudo's on your build!

        maybe we can hear a clip?


        Ray

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        • #5
          Yeah....c'mon now, schematic & tone clip. Can't wait to see / hear it.

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          • #6
            Yea, clips or it didn't happen.
            -Mike

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            • #7
              ok, lemmie see what i can do. Tonite i have a new strat body to drill and put together, so it may be a few days or i may get to it tonite if i have time and theres no one upstairs.

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              • #8
                ultimate amp, ungodly tone...no schematic or clips?

                Doh! tonus interuptus!

                kidding but please don't tease too long!

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                • #9
                  Don't hold your breath. I can't play past whisper volume here except when the people upstairs are gone. So it's not a matter of just recording them....i gotta wait for the chance.

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                  • #10
                    [QUOTE=tedmich;101989]

                    Doh! tonus interuptus!

                    QUOTE]

                    LOL!

                    Rob

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                    • #11
                      Originally posted by daz View Post
                      Don't hold your breath. I can't play past whisper volume here except when the people upstairs are gone. So it's not a matter of just recording them....i gotta wait for the chance.
                      Daz

                      I'm working on an attenuator project right now for the amps I'm building. I'll send you a schem when I get it drawn up proper. Could be your next project. Since you don't seem to mind soldering there is some $$$ to be saved by rolling your own.

                      Kudos on the good feedback. The first time it happened to me I was so proud that I had to adjust myself due to the chub I carried for two days

                      Just a word on something we discussed in another thread... If the guy played through your friends amp, and thats what he wants, copy that amp (layout, componants, etc.). Not the idealized version you have. Give 'em what they want. What you like is probably great. But what he likes could be different. And he likes your friends amp.

                      The really tough news is that for a one off build with all the individual supplier shipping, low parts order count and lack of a developed systematic approach, you probably won't turn a profit for your time. But who cares. Building amps is something you've happily been doing for free for awhile now. And if you make this guy happy, and he's loaded as you say, he could be an investor later if you ever need one

                      Chuck
                      "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

                      "If you're not interested in opinions and the experience of others, why even start a thread?
                      You can't just expect consent." Helmholtz

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                      • #12
                        Well, i don't plan on building them for profit because theres no profit to be had unless i charged the big bucks. And no one will pay big bucks for a no name amp with no legit warranty etc.I figure it costs me about $600 to build one, and just building the cabinetry is more work than the profits i might be able to pull on a illegit amp. I wish there were a way, but it just ain't gonna happen. I suppose if i dedicated several years to promoting it at a loss i might in time be able to pull it off. But i'm too old and don't have enough time left for that. If i DO build on for that guy i will have to let him try mine because i wouldn't build another like the one i sold to my friend, and it DOES sound considerably different probably due to the haphazard layout. But mine sounds better anyways IMO and the guy would probably like it better.

                        As for the attenuator, i'd like to see that. But to be honest i haven't tried or made one that didn't kill the high end to some degree. But if yours doesn't i might consider making one.

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                        • #13
                          heres the newest schematic i have. there are several changes since this, and i see at least one mistake which is the cathode cap switch is DPDT and is wired so the cap negatives are NOT together when lifted from ground. Anyway, this one is close enough to get the general idea.

                          http://s24.photobucket.com/albums/c3...urrent=amp.jpg

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                          • #14
                            Nice clean design Daz. It is just different enough to really have a sound of it's own, I'm sure. I can't wait to hear a tone clip. I'm really interested in the difference in tone as the gain knob is turned up. I've always shyed away from tying a lower value resistor to a 1M gain pot because I could never get it to sound like I wanted but it makes so much sense in theory I want to hear it work well!

                            I bet that thing is pretty tight sounding with just a bit of softness in the touch.

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                            • #15
                              Actually the tone doesn't change a lot as it's turned. It definatly sounds best at the distortion end of things tho. The cleans aren't great. Not bad, just not tin the same league as the distorto tones. Then again, the cleans i get turning the guirar down are IMO excellent, and thats where i live a lot of the time. i don't like CLEAN clean.

                              I've always shyed away from tying a lower value resistor to a 1M gain pot because I could never get it to sound like I wanted but it makes so much sense in theory I want to hear it work well!
                              that was actually the first big breakthru for me ! when i tried that the thing came alive verses using dividers as i had before that.

                              Speaking of this, it looks like somethig went wrong with my oh so great creation. taking to the guy who played it, it seems he mentioned the volume going down at one point. I have it here now and the volume is just gone ! I did a gig with mine and it sounded fabulous and no issues. So i don't think it's the design.

                              Anyways, maybe Someone can give me some ideas as to what this might be. The amp doesn't get loud, and the master just gets more OD after about 10:00. At one point when i had it turned up the volume came back in a few loud sputters then back down where it's stayed since. i checked the plate voltages and all the node voltages. Screen resistors are fine and voltages at the screes are normal. B+ is normal right from the source. measured everything as per weber's cathode bias calculator and entered it and got 60 ma which according to that page is right for the plate V of 375 in cathode bias. Checked every solder joint in the amp and hit a few that were important ones. What else might i look for that could cause this? I just can't see what it could be. Tried all different tubes too.

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