separks wrote:But isn't that the Audio Regenesis board already?
http://audioregenesis.com
I would make the board the same dims as the Rev C & Rev D, so a retrofit would be easy.
I'm in the bowels of a commercial Budgie project. It basically has absorbed all my tube time in the last several months. But the revamped ST35 is on my short list of 2012 projects.
Shannon
No - the Audio Regenesis board is (sadly) both a PS board and EFB board and specifically, the PS portion is for the SCA-35, which is notably different from the ST35 PS. While it is a great product, it outputs the wrong voltages for the driver/phase inverter since the SCA-35 is designed around the 7199 instead of 7247 (or in the case of the DIYTube ST35, a 12AX7 and 12AU7). You'd have to cut traces since it comes fully assembled from Audio Regenesis.
And while a new board with the same dimensions would be great, it would be a PITA to retrofit as you'd have to remove all the parts from the existing board (or buy a new BOM to stuff the new board) and solder them onto the new board. If there were simply a separate EFB board (not even a PSU + EFB, but just a mini EFB board), then it would be relatively trivial to add to an existing ST35 (DIYTube or old Dynaco).
Just my $0.02. Thanks!
-D
p.s. And what on earth were you doing online at 4:36AM? Did the baby get you up?