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|    rec.audio.tubes    |    Tube-based amplifiers... that go to 11    |    52,877 messages    |
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|    Message 52,384 of 52,877    |
|    Peter Wieck to Frank Lucas    |
|    Re: Second DIY (sort of) Amp    |
|    04 Nov 14 04:41:54    |
      From: pfjw@aol.com              On Tuesday, November 4, 2014 12:59:06 AM UTC-5, Frank Lucas wrote:       > I have made a ST35 clone (perfect copy) out of the trafos bought on ebay        > long ago, no pcb but a solid 3mm copper plate put on a diy raw wooden        > box. I love the sound of this and all the other 35 I have listened in my        > life but I find Leaks Stereo20 slightly better with the right preamp.       > Now I have a SCA35 that I could restore or take the irons out and build        > another 35 clone. Eager to see what are your impressions on the board        > you decided to use and to see pictures of the finished job.       >        > Frank       > Florence, Italy              That will likely be this coming weekend. Linked is the drop-box of pictures       to-date - I had not planned to share the progress photos before completion,       but here it is. Note that wire-management is crude at this point, the final       configuration will be be        determined how stable the unit is when actually carrying signal. I *know* that       running line AC next to signal wires is generally not the best of ideas, but I       am using the ties to keep things out of the way. Nor have I 'shrunk' the       tubing around the        splices yet - that also will be done after testing and final layout.               I have five or six sketches on how I will finish it - in a house with two       active cats, two very active dogs, and as often as not up to four small       grandchildren, an open look is not going to happen. So it will be caged. As I       am recycling Dynaco stuff, I        have several options. Simplicity will be the goal in any case.              Now, as to restoring the SCA35 or cloning another - bluntly, I would restore       it rather than clone it, the exception being if it is well-and-truly not       salvageable. There is a nifty power-supply board available that pretty much       takes care of that issue in        a simple and elegant way - including adding time-delay, and restoring the       boards is very, very easy.               Peter Wieck       Melrose Park, PA               https://www.dropbox.com/sh/464rqwpo6ddh2et/AADynzDDsYUaySK-tIv8RDRia?dl=0              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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