by audiowize » Mon Jan 14, 2008 4:23 pm
Please do not put a switch in on those high voltage AC lines. 99% of the switches you will be looking at online are rated at 250VAC maximum, and the Dynaco voltages exceed that.
For my SDS boards, I actually stuffed them with Solen film caps. If you're looking to replace the Panasonics that come with the board, you might just upgrade in that same line to the Panasonic FM series.
Also, depending on the choke, you might want to add a bit of capacitence after the choke, as the Dynaclone 1.5H/55 ohm choke should be followed by a cap of 80uf or greater (by the general rule that C*H>.1) Other options for chokes may also be considered. I went to a 6H-150 ohm choke followed by a 47uf cap.
Also, what is it about the diodes that you like over the tube rectifier? If you're running a stock ST-70 transformer, I wouldn't bother with the diodes.