If you haven't already done so, you might like to try the 6CG7

I tried a couple of versions of that when I had a CJ Prem 4. Obviously couldn't
compare directly to a 6SN7 because different sockets. I did also try it in a
Leak Stereo 20. I never got any magic out of it - maybe some brands are better
than others. On the other hand, some of the octals are quite exciting. I have
some old round plate 7N7s which are lovely (early 40s and very rare), and the
2C22/7193 is terrific. So are the 6P5GT and CV1932. I bought some 76, 56, 37
and 27 so they're next up. Different sockets again. Morgan Jones tested a lot
of octal valves in his latest book, and generally found them better than
novals, and there are also other distortion tests on the web which confirm low
distortion for the above valves.

=== Andy Evans ===
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