Because... coincident with the intro of the F6 was the news that Semisouth will close their doors and discontinue production. The only stock available most of us knew about has already been depleted.
What various online vendors currently offer genuine SemiSouth devices for sale?
What various online vendors currently offer genuine SemiSouth devices for sale?
there are still alot of semisouth sit transistors available in stock at various online vendors. Why isnt that considered to build F6?
???? what ? can you elaborate on that please.
i mean the current F6 is being built on IRF devices?
So, you got F6 article using IRF ? Why don't you shared with us.
Didiet
Nelson's second post in the original F6 thread, e.g #14, states that he uses the R100 which is SemiSouth, did you miss that?
http://www.diyaudio.com/forums/pass-labs/216616-f6-amplifier-2.html#post3100945
http://www.diyaudio.com/forums/pass-labs/216616-f6-amplifier-2.html#post3100945
did you miss that semisouth nolonger exists? they were always expensive, so a mosfet version was always on the cards, now more than ever.
and they are NOT still available in large quantities
But someone have large quantities.
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- why not F6 with semisouth Device since they are still available in large quantities..