Really looking forward to your build Dave. I have a Pete millett low-mu preamp that I can't seem to get the hum out of. My frustration level is making me think I should build a different pre.I forgot to add the schematic. This is courtesy of Paul B.
My plan is to try a hybrid rectifier with a 5R4 tube and to replace the one OD3 with two OA3s for the same voltage drop.
Boy I hate Styrofoam packing peanuts!
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