Matching Mosfets and BJTs

[Alvinttt]

Can anyone tell me how do you do matching for output mosfets and small signal BJTs for input stages, current mirrors. Will be grateful if you could also show me the schematics for the circuitry.

 

[sunny130y]

Mosfet matching

Hi, I downloaded an article from PassDIY site on A75 power amp. It has a section on matching mosfet.

Let me have your email address and I will email the article to you.

 

[Alvinttt]

Thanks I've seen that one can't figure out how he gets the transconductances values, would be grateful if you could explain to me. Anyway I'm looking for a more generic circuit, the one in PassDIY, requires the operating current values.
Cheers