Hello 
I've got a darkvoice 336 with stock tubes that I bought new 3 months or so ago.
Recently I've noticed the transformer giving off a slight humming sound, and there's a humming in one channel on the amp that remains the same regardless of input or volume. I have a multimeter, a soldering iron, a screwdriver and a steady hand. What I don't have is a clue as to what the problem could be!
I'm currently goign through the process of getting some new tubes so I can discount them as the problem (although I would have thought the buzzing would change with volume if it were a dying tube, or am I wrong?) and I'm also interested in doing fitz's hum mod, although I'm at a loss as to what would be a decent type/brand/model capacitor to use, I looked at the price of 100uf caps aimed at the audio market - winced - then closed the page
any recommendations welcome!
Tim
I've got a darkvoice 336 with stock tubes that I bought new 3 months or so ago.
Recently I've noticed the transformer giving off a slight humming sound, and there's a humming in one channel on the amp that remains the same regardless of input or volume. I have a multimeter, a soldering iron, a screwdriver and a steady hand. What I don't have is a clue as to what the problem could be!
I'm currently goign through the process of getting some new tubes so I can discount them as the problem (although I would have thought the buzzing would change with volume if it were a dying tube, or am I wrong?) and I'm also interested in doing fitz's hum mod, although I'm at a loss as to what would be a decent type/brand/model capacitor to use, I looked at the price of 100uf caps aimed at the audio market - winced - then closed the page
any recommendations welcome!
Tim
