2 x 20....50 W AUDIO AMPLIFIER
* LM 358 is optional (R10, IC3, R19)
* D1...D6 is optional
* D7, D8 is 300-800 mA SMD type
Loudness compensation switch : 
* If LM358 is not used: PH SW
is connected to PHo instead of PH
out
MUTE SW is optional
0.7uH = 15 turns D = 9..10 mm d = 1 mm Cu
