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best designed single tube reverb

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  • best designed single tube reverb

    hi everybody,

    i'm using merlins new book to help design an amp. great job on the book and the web site btw but he hasn't gotten to rv yet so i'm asking yall to give me your opinion on the best ecc8 x direct drive rv driver/recovery if such a thing exists. i understand everything but impedance and it is extremely irritating.
    thanx gents
    a recent conversation,
    ..."why not just buy an amp?".. 'cause I'll just have to tear it apart and fix it anyway.

  • #2
    Hiya mr.jetski

    Have a look at some of teh one-tube reverb circuits over at the Dumble forum. tubenit does quite a few of these in his amps, so it might be worth PM-ing him
    Building a better world (one tube amp at a time)

    "I have never had to invoke a formula to fight oscillation in a guitar amp."- Enzo

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    • #3
      Hi,
      There is some discussion of direct drive reverb on my site: The Valve Wizard

      Comment


      • #4
        thanks pete and merlin

        Originally posted by Merlinb View Post
        There is some discussion of direct drive reverb
        just at first glance can't a ecc81 do the same job with half a bottle @ 10k ra?
        a recent conversation,
        ..."why not just buy an amp?".. 'cause I'll just have to tear it apart and fix it anyway.

        Comment


        • #5
          Originally posted by tubeswell View Post
          Hiya mr.jetski

          Have a look at some of teh one-tube reverb circuits over at the Dumble forum. tubenit does quite a few of these in his amps, so it might be worth PM-ing him
          Hi,

          would you mind to give a link?

          Do you mean th e Dumble forum at amp garage?

          Comment


          • #6
            Originally posted by rocket View Post
            Hi,

            would you mind to give a link?

            Do you mean th e Dumble forum at amp garage?
            Yep - do a search over there for 'D-lite reverb' or 'one tube reverb'

            The Amp Garage :: Search
            Building a better world (one tube amp at a time)

            "I have never had to invoke a formula to fight oscillation in a guitar amp."- Enzo

            Comment


            • #7
              Image hosting, free photo sharing & video sharing at Photobucket

              Blues amp picture by tubenit - Photobucket

              56T reverb w/VVR picture by tubenit - Photobucket

              Plexi 25 w reverb w/ MTS picture by tubenit - Photobucket

              Here is an example of 5 different amp where I've used that. I like the way it sounds more than the Fender reverb. I have owned and played Fenders with reverb. This verbs more mids but it is not as intense as the Fender surf sound.

              The first 3 photobucket schematics are the amps I currently play/own.

              I use a dwell which I usually have set between 5-7 & the reverb pot is usually set between 3-3.5. It has all the reverb I need or want.

              It's not my idea, I stole it from the D'Lite guys.

              With respect, Tubenit
              Attached Files

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              • #8
                thanks tubenit
                what transformer is used in there?
                a recent conversation,
                ..."why not just buy an amp?".. 'cause I'll just have to tear it apart and fix it anyway.

                Comment


                • #9
                  RT

                  I use a typical Fender replacement trannie and tank like in a Princeton Reverb or Deluxe Reverb.

                  Tubenit

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                  • #10
                    thanks,

                    this is my first build so i may seem a bit dense

                    you mean 022921 or 125A20B
                    a recent conversation,
                    ..."why not just buy an amp?".. 'cause I'll just have to tear it apart and fix it anyway.

                    Comment


                    • #11
                      Yeah that the RT he means (and a type 4 Accutronics tank with an 8R input impedance I suspect). However since you would be running a 1/2 12AX7 into the RT (which has a 15k primary and an 8R secondary), you may want to try a tank with a different input impedance in order to get a better reflected load for the 1/2 12AX7 driver, or use Merlin's idea of a SRPP EEC88 to drive a mid-high input impedance tank directly (i.e.; without an RT)
                      Building a better world (one tube amp at a time)

                      "I have never had to invoke a formula to fight oscillation in a guitar amp."- Enzo

                      Comment

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