spritzer Posted May 6, 2013 Report Share Posted May 6, 2013 (edited) This one has been brewing for a while now but since I wanted to build a nice balanced amp it moved up in line. Basic setup is the same as the old Dynalo but now with Super Symmetry input, higher rail voltages and naturally a bit more power. Input stage changed to THAT340 which is a quad bipolar transistor array with matched NPN and PNP pairs. It is cheap and easy to source so no jfet drama. The other transistors are new as well and the pinout is different to reflect that. Here is a look at the new PCB design which is pretty much ready: It is 138*86mm. Another thing from the same vein is a fully discrete unbalanced to balanced circuit that we have been working on so no DRV134 garbage. I'll start with this one though and order some proto boards this week. Edited May 6, 2013 by spritzer 2 Quote Link to comment Share on other sites More sharing options...
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