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A friend of mine bought this old ELK amp off Gumtree a couple months ago, it needed work: a cap job, sockets needed to be retensioned/cleaned/repalced and the parts themselves were not the greatest quality so rather than throw money into it we looked at using the amp as a donor and decided to build a single channel AB763 Blackface Deluxe Reverb circuit using a Hoffman Board.



I replaced ALL the sockets and jacks as they were terrible quality and had to drill in an extra 9 pin preamp tube, as you can see from the chassis.



I also added in a choke and separate PT wired off the heaters for the bias tap as the existing PT didn't have one.





The amps sounds nice and clean, I'm using shielded hookup for the volume and input, makes the world of difference in getting the noise down. The tremolo/vibrato is quirky at best, not as nice as the Fender opto style, but useable.



The amps reverb tank is broken so I need to source a replacement, which is why the reverb trannie isn't hooked up.

Cheers

Matt
    hey Matt..

    awesome.. what model is that? cant make it out on the pic..

    i had mine recapped and serviced with JP. it came back sounding awesome. super chimey cleans..

    he didnt mod anything though.. just sorted out some issues like correctly hooking up the tremolo etc. that works quite well now. the reverb on my unit is quite strong and anything above 2 gets very airy..

    i quite like it. granted the service and recap did it a world of good. its very quiet too. very little hum. he did a great job at what i felt was acgood price.

    put in some jjs too.

    i run a tonebone in front of it for crunch and it gets raunchy as hell.. so i got great cleans and drive..

    could your mate maybe post some clips?

    love your work
      Lovely job Matta! Where did you get the turret board?
        Damn, I want it.

        Is it the spring tank that's bust? Can't you order direct from acutronix?

          Thanks Karel! I got it from a guy in the USA, the board was actually complete, the original seller fell through and so I got a good deal on it.
          Karel Mars wrote: Lovely job Matta! Where did you get the turret board?

            The model is not on the amp and I had trouble locating the original schematics for it, though tracing it out it was a derivative of the AB763 circuit, which is what the Blackface Deluxe Reverb uses. This amp is all about the crunch, starts to break up around 3, and is a LOUD 22 Watts. Basically it IS a Tonebone preamp ?

            Matt
            guidothepimmp wrote: hey Matt..

            awesome.. what model is that? cant make it out on the pic..

            i had mine recapped and serviced with JP. it came back sounding awesome. super chimey cleans..

            he didnt mod anything though.. just sorted out some issues like correctly hooking up the tremolo etc. that works quite well now. the reverb on my unit is quite strong and anything above 2 gets very airy..

            i quite like it. granted the service and recap did it a world of good. its very quiet too. very little hum. he did a great job at what i felt was acgood price.

            put in some jjs too.

            i run a tonebone in front of it for crunch and it gets raunchy as hell.. so i got great cleans and drive..

            could your mate maybe post some clips?

            love your work

              Yes, just the tank, I'll be replacing it with an Accutronics 'short' tank in time, new they are only about R250.00.

              Cheers

              Matt
              singemonkey wrote: Damn, I want it.

              Is it the spring tank that's bust? Can't you order direct from acutronix?
                Great Build Matt. I guess it sounds amazing.
                Cheers
                Andy
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