Over the years I kept buying tubes which I found interesting based on their tube data but which are completely unknown in the audio world. One of these is the 6AW8A.
The 6AW8A has a triode and a pentode section. The triode section caught my attention due to the technical parameters which seemed interesting for audio use.
6SL7 but at a much lower plate resistance of only 17500 Ohms. That's what made me buy a bunch of 6AW8A and put them into the box 'interesting tubes to be checked for use in audio later'. Well the check later turned out to be more than 20 years now while the 6AW8A had been lingering in tube drawers. I don't know if I well ever get to actually use the 6AW8A in a project but at last I pulled it out for a closer look and a tube of the month post. For the complete technical specs see the General Electric data sheet. As always let's have a look at the plate curves, starting with the triode section:
And here the curves taken with a tracer:
The pentode section:
The pentode triode wired:
A very interesting tube indeed and definitely deserves more attention.
Here we have a General Electric 6AW8A.
A very interesting tube. Both sections should be well useable for audio. Maybe a phono stage?