Patrick Turner wrote:



A colleague in Sydney is doing an SE amp with 6 x GM70 for 120 watts.
But it will be switchable to PP......its doable, 5 very good switches are needed, and I
did the OPT design.

Whether the GM70 is better than 845 is unknown.


IMHO, we found that the graphite GM70 is not as good as the copper GM70,
the copper GM70 was nicer than cheap Chinese 845's, but I don't know how
the newer metal plate 845 or NOS 845 would sit in that list.

Though, what do I know, I still prefer the 211 :-).

I would have thought that 4 graphite GM70's would be enough for 120w.

BTW, HF heating makes the GM70 a lot simpiler to use.

--
Nick