V-FETs are finicky! The amp could be changed over but there would be more than just replacing the output transistors.
Even the old V-FETs are hard to find. BTW the kit that was offered makes about 25 watts. IMO the V-FET was the solid state solution to end the tubes/transistors debate, but Sony never saw fit to also offer driver and small signal devices, so the technology didn't go anywhere, like many of Sony's ideas... But that kit amp is one of the very best solid state amps I've heard.
Even the old V-FETs are hard to find. BTW the kit that was offered makes about 25 watts. IMO the V-FET was the solid state solution to end the tubes/transistors debate, but Sony never saw fit to also offer driver and small signal devices, so the technology didn't go anywhere, like many of Sony's ideas... But that kit amp is one of the very best solid state amps I've heard.