Rerurn to Romy the Cat's Site

I would like to extend my last previous post a little. First off all, I would like to remind that I am very much not an expert in usage of transistor and second - I would like do not convert this thread into those DIY desecration: as you all know I hate DIY people.

Still, the Ridley Audio guy smudges that he found a way to runs his transistors at 150 degree C.  With raise of temperature the current carrying capabilities decrease significantly.

So, driving Zarathustra in pure Class A, with no tricks or biasing abracadabras, I wonder how mach “save current” (power) we would be loosing is we go over 100 C. It looks like the Ridley Audio guy uses custom made MOSFETs and suggest that they do better at high temperature. He might be very correct but would it affect only HIS MOSFETs? Zarathustra does not use MOSFET, does not operate in AB and meant, quietly wise be good enough even to drive horns (!), which is very bold requirement that I do not know if we would be able to meet. The Ridley suggest the Kevlar-ribbon loudspeakers… If my definition of success were to make a playback to sound good for  jazz then it would be enough….

The Cat

Rerurn to Romy the Cat's Site