Oops Vk-3ix - my mistake there
So I switched out the stock tubes and dropped in the Mullards that came separately with the unit and the hiss stopped.
But now some wierd things are happening the new tubes (I say new they have 50 hours on the according to the previous owner):
1. I hear this ding - ding - ding when the preamp is just started lasts about 3 min. Its supper faint but its coming through the speakers. It almost sounds like very soft bells.
2. The bells go away then i start hearing a crackling noise from both speakers that's faint and doesnt go up with volume. Once a few minutes go by it only come out the left speake and the right speaker seems normal. I switched the tubes and the crackling switched sides.
3. There is a louder hiss from the left speaker than the right, though not nearly as loud as the stock hiss and it can't be heard from sitting position.
Could tubes go bad thru the shipping process?
So I switched out the stock tubes and dropped in the Mullards that came separately with the unit and the hiss stopped.
But now some wierd things are happening the new tubes (I say new they have 50 hours on the according to the previous owner):
1. I hear this ding - ding - ding when the preamp is just started lasts about 3 min. Its supper faint but its coming through the speakers. It almost sounds like very soft bells.
2. The bells go away then i start hearing a crackling noise from both speakers that's faint and doesnt go up with volume. Once a few minutes go by it only come out the left speake and the right speaker seems normal. I switched the tubes and the crackling switched sides.
3. There is a louder hiss from the left speaker than the right, though not nearly as loud as the stock hiss and it can't be heard from sitting position.
Could tubes go bad thru the shipping process?