Scalar Audio Power Amplifier

ANADIGIT · 2010-05-17 9:18 am

Scalar Audio : SCA-150

Balanced / Unbalance Input, Full current/temp/clipping protection.
150W/CH : 8 Ohms

Thanks
Anadigit

AndrewT · 2010-05-17 10:18 am

VAS directly feeding a 3pair BJT output stage?

ANADIGIT · 2010-05-17 10:49 am

Vas

AndrewT said:
VAS directly feeding a 3pair BJT output stage?

No, by Q10, Q11
Real schematic used 4 pairs output transistor Q12-Q19 !

Thanks
Anadigit

ANADIGIT · 2010-05-17 1:42 pm

PCBs

Top overlay and Bottom layer.
I used Protel 99 SE to design them, very usefull !

Thanks
Anadigit

AndrewT · 2010-05-17 2:11 pm

Oh!
My mistake.
I misread that as a 3pair output stage.
Sorry.