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/464rqwpo6...tIv8RDRia?dl=0