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Egnater Rebel 20 20 Schematic?

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  • Egnater Rebel 20 20 Schematic?

    Does anyone have a schematic for a Egnater 20 20? Although it is made in China and is not hand wired it has some interesting features. It seems to be a class A amp that has a set of EL84s and a set of 6L6s with a blend pot. It also seems to have a built in attenuator. They claim that it will go from bedroom level to a small venue usable 20 watts. It has an FX loop and three 12AX7s in the preamp plus a 3 control tone stack.
    Has anyone here used one? I'm not expecting Fender clean but standard Marshall usable clean. I have read that it has some humm. I'm thinking that a DC filament mod like in a Valve Jr might correct it. I'm thinking of grabbing one of these Egnaters (for around $500) and seeing if I can clean it up rather than building an 18 watt kit or 20 watt Marshall. Opinions?

  • #2
    ive tried it it get a very good fender tone think stones tone its a very cool amp great price id try it youll want it i think it got 1 6l6 and 1 el that you can blend

    Comment


    • #3
      The amp has a pair of JJ6V6S tubes and a pair of EL84s that you can blend. More info here: http://www.egnateramps.com/Rebel20.html

      I tried one out in Guitar Center a while back. It sounded pretty good to me. It has a high gain preamp, but can do clean sounds as well. Pretty ballsy even with the Chinese Squire strat I was playing through it.

      The Tube Mix knob was kind of scratchy, which is not a good thing as the amp was only about a weak old. The volume pot was touchy, it was either too soft or too loud and came on all of the sudden. The Watt control worked as advertised.

      The two Bright and Tight switches didn't really do all that much that I could tell.

      I was kind of divided on the amp. On the one hand it had lots of cool features, is small, and sounds relatively good, but on the other it is made in China so $600 is a lot to pay for something with possible reliability issues.

      chuck

      Comment


      • #4
        So nobody has a schematic or knows how they put the preamps and the wierd output seup together? It seems like a good idea but I don't see a lot of other people doing it. Is it hype? It seems like an idea that could be incorperated into a build.

        Comment


        • #5
          I'm a little curious about this amp as well- maybe they're using some sort of mosfet arrangement to share the load between the two sets of output tubes?

          I was picturing ways to do this using mosfets at the cathodes and a floating phase splitter transformer arrangement...can't think of easy ways to make it bias up correctly without strange things happening though. I'm not an EE by a long shot!

          anyone with a degree from a university or life care to comment?

          jamie

          Comment


          • #6
            I think the tube mix control is SUPPOSED to be scratchy...

            I read somewhere that it's the only way they found that they could mix the 2 sets of tubes...


            Before, it used a footswitch to change the tubes, but Mesa has the patent for such a thing so they had to scratch it...

            Comment


            • #7
              Originally posted by Pr3Va1L View Post
              I think the tube mix control is SUPPOSED to be scratchy...

              I read somewhere that it's the only way they found that they could mix the 2 sets of tubes...

              Perhaps they are still trying to "reverse engineer" some of my equipment ; and just by the way, my mix controls are not scratchy......

              -g
              ______________________________________
              Gary Moore
              Moore Amplifiication
              mooreamps@hotmail.com

              Comment


              • #8
                Originally posted by mooreamps View Post
                Perhaps they are still trying to "reverse engineer" some of my equipment ; and just by the way, my mix controls are not scratchy......

                -g

                Somehow i doubt it...

                As I've said, the prototype Rebel had a footswitch to switch between the 2 pairs of tubes.



                BTW, got a webpage for your amps?

                Comment


                • #9
                  Originally posted by Pr3Va1L View Post
                  Somehow i doubt it...

                  As I've said, the prototype Rebel had a footswitch to switch between the 2 pairs of tubes.



                  BTW, got a webpage for your amps?
                  Somehow I do. I don't seem to recall anyone doing twin PA layouts on their builds when I brought up my first model 5 prototype amplifer. If there were, I was not aware of it..

                  So, the Rebel is switchable, and blendable ? That's not bad, but still does not explain the scratchness, nor the weight.

                  Web page ? No, not at this time. I do have something on the web under a different name, but it is so out of date, I've just got to take some time and refresh that page.


                  -g
                  Last edited by mooreamps; 12-23-2008, 01:33 AM. Reason: content
                  ______________________________________
                  Gary Moore
                  Moore Amplifiication
                  mooreamps@hotmail.com

                  Comment


                  • #10
                    Originally posted by mooreamps View Post
                    Somehow I do. I don't seem to recall anyone doing twin PA layouts on their builds when I brought up my first model 5 prototype amplifer. If there were, I was not aware of it..

                    So, the Rebel is switchable, and blendable ? That's not bad, but still does not explain the scratchness, nor the weight.

                    Web page ? No, not at this time. I do have something on the web under a different name, but it is so out of date, I've just got to take some time and refresh that page.


                    -g



                    Actually not... That's what's bad about it.

                    The thing was supposed to have just the switch but Mesa/Boogie owns the patent for footswitching tubes...

                    They cooked up something quickly, I guess... Hence why it may not be the best way to do it...

                    Comment


                    • #11
                      Originally posted by Pr3Va1L View Post
                      Actually not... That's what's bad about it.

                      The thing was supposed to have just the switch but Mesa/Boogie owns the patent for footswitching tubes...

                      They cooked up something quickly, I guess... Hence why it may not be the best way to do it...
                      Oh, I see. Well, they could have just put a switch on the front panel, like I did. But, it does not look like this unit blends the pre-amp channels either. Oh well....

                      -g
                      ______________________________________
                      Gary Moore
                      Moore Amplifiication
                      mooreamps@hotmail.com

                      Comment


                      • #12
                        I actually just tried one of these out at Guitar Center. Decent tone and at a reasonable price. No comment on the reliability. It's good to see the engineers are thinking a little outside the box.

                        Originally posted by mooreamps View Post
                        Somehow I do. I don't seem to recall anyone doing twin PA layouts on their builds when I brought up my first model 5 prototype amplifer. If there were, I was not aware of it..

                        -g

                        ...circa 1994: http://www.mesaboogie.com/Product_In...lue_angel.html

                        and the schematic:
                        http://www.freeinfosociety.com/elect...blueangel3.gif



                        Originally posted by mooreamps View Post
                        Perhaps they are still trying to "reverse engineer" some of my equipment ; and just by the way, my mix controls are not scratchy......

                        -g
                        Their design seems to have DC on the pots, this means that the pot is probably located right before the power tube grid-stoppers, which is due to the bias voltage being applied to the pots (remember this is not a SE design, they need the tightness only a PP fixed bias power amp could accomplish). Not the most ideal way, but if Mesa Boogie's got you by the... well you get the picture.

                        Comment


                        • #13
                          Originally posted by SeanM View Post

                          Not the most ideal way, but if Mesa Boogie's got you by the... well you get the picture.
                          No, it's not the most ideal way. They switch the cathode bias circuit under the power amps, and thus arc the switch contacts. {ya gee, what a good idea..} Perhaps one reason why this unit is no longer in production, which I'm just not seeing how that could get me by the .... It's not even set-up as a mixed mode PA, which is the only "picture" I'm seeing.........

                          -g
                          Last edited by mooreamps; 12-29-2008, 05:10 AM. Reason: content
                          ______________________________________
                          Gary Moore
                          Moore Amplifiication
                          mooreamps@hotmail.com

                          Comment


                          • #14
                            Originally posted by SeanM View Post

                            Their design seems to have DC on the pots, this means that the pot is probably located right before the power tube grid-stoppers, (
                            did you even bother to look at the print ; before writing this ?

                            -g
                            ______________________________________
                            Gary Moore
                            Moore Amplifiication
                            mooreamps@hotmail.com

                            Comment


                            • #15
                              rebel 20

                              Originally posted by olddawg View Post
                              Does anyone have a schematic for a Egnater 20 20? Although it is made in China and is not hand wired it has some interesting features. It seems to be a class A amp that has a set of EL84s and a set of 6L6s with a blend pot. It also seems to have a built in attenuator. They claim that it will go from bedroom level to a small venue usable 20 watts. It has an FX loop and three 12AX7s in the preamp plus a 3 control tone stack.
                              Has anyone here used one? I'm not expecting Fender clean but standard Marshall usable clean. I have read that it has some humm. I'm thinking that a DC filament mod like in a Valve Jr might correct it. I'm thinking of grabbing one of these Egnaters (for around $500) and seeing if I can clean it up rather than building an 18 watt kit or 20 watt Marshall. Opinions?
                              No schem. But i own a rebel 20 with a 1x12 and an 4x10 cabs. You need not do a thing to this amp. No hum. Awesome clean crisp highs and low growling distortion when you want it.. Sounds more like a vibrolux it's so damn loud! rebel 30 should be even more awesome! i want to build my own out of a 8A40 kit.[see my 1st. post today. ] Aloha jimi/ Laynor

                              Comment

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