Gallium

[jabbr]

1 hour ago, Ralf11 said:

 

Besides greater efficiency for the Class D aficionados, Ga-x could ultimately lead to a nice amplifier based on a Nelson Pass design but capable of driving real speakers...

 

I know @jabbr and some others have First Watt or Nelson Pass amps...

 

You could try building a variation of a “Zen” amp using s GaN FET ... or see if anyone on the Pass subforum at DIYAudio has looked at that —- building amps with an unusual FET is right up their alley.

[jabbr]

1 hour ago, Shadders said:

Hi.

Gallium was always high frequency implementations - i wonder if they produce transistors applicable for audio. Is there a reduced base width modulation at audio frequencies ?

Regards,

Shadders.

 

The FirstWatt series of amps, most of which have published schematics, as well as build threads over at DIYAudio contain many of Nelson Pass experiments using Power Switching transistors for audio. I have SemiSouth SiC transistors in my J2 and SIT-1 and the DEFSIT/SIT-3 uses unique combo.

 

So GaN probably could be made to work but I haven’t studied the data sheet enough, I suspect someone will try it if for no other reason than bragging rights...