supermosfets!

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Why would you want to use an RF mosfet when normal devices are already fast enough? :confused:

When I talked to experienced tube amp designers, they refused to think about using power MOSFETs because of their large non-linear input capacitance. Of course, an experienced designer could deal with any parts, but at expence of some compromise. What is proposed in this thread, is just a step towards less compromise design.
 
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I figured I would ask in this post about some mosfets I found in the junk bin.

I have 5 "mega mosfets" IXYS IXTK62N25. I was thinking about Son of Zen amp, or balanced Zen light with these? I assume these can be used in a Class A amp and biased pretty hard. The ciss is high @ 6600pf I would assume thats the only limitation on this mosfet?

Thank you,

Steve
 
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