Chakster, it's good those tubes last, because the one's I have, have doubled in price.
I have NOS British Mullard that must be at least 20 years old, and they have been working every day and night; plus, they sound like new to me.
Unless I have the tape machine modified. How difficult is it ?@inna It might not be that hard. I think the big problem to vercome is not input impedance, but the overall gain. But if the input impedance is dealt with, then no need for a transformer- so you might have enough gain at that point (a line transformer steps down, so reduces gain). That might be the easiest solution, and changing the input impedance should not be difficult. A look at a schematic will tell a lot. |