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Original Message
There is a 6SM7 (well nearly)
Posted by Mike C on January 23, 2017 at 16:36:01:
The 6C8G is in my view 'the 6SM7 that never was'.
Octal with a top cap, mu just under 40, runs nicely at about 4mA and dissipation a bit under 1 watt. Pretty much midway between 6SL7 and 6SN7.
I use this in a mu stage as driver for my best SET amp. The mu stage runs about 10mA total current, from a low impedance, and will swing over 100V both ways, so it'll drive a typical power triode very well indeed.
And it sounds very good! Look at those curves ....