Veteran and General Yakker
- Mar 10, 2012
- Independence, MO
- I'm the Red Knight, by grant of the Black
Some weeks ago, I bought a used FX Audio 6J1 preamp. It's very simple, with one input and one output. I replaced the stock Chinese tubes with new-old-stock joint-army-navy Sylvania 5654W tubes. There was an ear-itating hum however, and it was there with all the power supplies I tried. Then, I rigged up a pure DC power supply with eight C-cells in series. Dead silence! Now the thing is just glorious! What do you all think of that?