You are not solving the problem, you are just covering it up. Swap the right and left side tubes. If the problem switches sides then the problem is with the tubes. Replace them with matched pairs. If the problem does not move then the problem could be with the receiver. Has your receiver been restored at all? If not there may be a problem with it. It is almost 50 years old and some of the components may no longer be in spec or not working properly. I would have it looked over be an expert in vintage electronics. By increasing the bias you are not only putting more stress on the tubes but on the rest of the receiver as well.
Biasing your Tubes to your Room
As I move down the road of enjoying an all analog system, every once in a while there seems to be some kind of breakthrough accidental or otherwise. Whether it being moving into a quality tube amp, or adding another pair of speakers to the output chain,
today I was switching around my output tubes on my Scott 340B.
I was getting a bit more sound out of my right channel than my left.. and this has been going on for quite some time. Subtle enough to not be overly concerned, but always there
ever so slightly.
However, my readings were spot on as far as millivolts go.
So I decided to just trust my ears and tune the bias screws
to my ears.
I literally took the listening experience to another level.
Now the question remains.. by supplying a bit more juice to the left channel.. is it my ears? the room itself? The tubes?
Ultimately it's a listening experience.. and although using the bias to tune to your room or you.. is not conventional wisdom, it's without a doubt tuned the experience very tight and offering a much more refined listening experience.
While some might suggest I am shortening the lifespan of my tubes, I don't really mind replacing them a year early if the quality of the experience is substantially superior to what the technical specs suggest or insist.
Anyone had a similar experience?
today I was switching around my output tubes on my Scott 340B.
I was getting a bit more sound out of my right channel than my left.. and this has been going on for quite some time. Subtle enough to not be overly concerned, but always there
ever so slightly.
However, my readings were spot on as far as millivolts go.
So I decided to just trust my ears and tune the bias screws
to my ears.
I literally took the listening experience to another level.
Now the question remains.. by supplying a bit more juice to the left channel.. is it my ears? the room itself? The tubes?
Ultimately it's a listening experience.. and although using the bias to tune to your room or you.. is not conventional wisdom, it's without a doubt tuned the experience very tight and offering a much more refined listening experience.
While some might suggest I am shortening the lifespan of my tubes, I don't really mind replacing them a year early if the quality of the experience is substantially superior to what the technical specs suggest or insist.
Anyone had a similar experience?
- ...
- 7 posts total
- 7 posts total