.PS # ex11.m4 cct_init "sp_{audio}" ljust { arrow down_ elen_/4} resistor(down_ 2*elen_) ; llabel(R_{17}) G: ground capacitor(right_ dimen_ from last [].c) ; rlabel(,C_{19}) {arrow <- right_ arrowht from last line.start} { resistor(down_ to (Here,G)); rlabel(,R_{19}) } {R18: resistor(up_ elen_*1.2); llabel(,R_{18}) } line right_ elen_/4 ; up_ Q4: bi_tr(,,,E) with .B at Here; llabel(,,Q_4) resistor(down_ from Q4.E to (Q4.E,G)); rlabel(,R_{21}) resistor(up_ from Q4.C to (Q4.C,R18.end)); llabel(,R_{20}) line up_ elen_/4; dot; "$V_{CC}$" ljust T1: Q4.C+(0,elen_/8) capacitor(right_ dimen_ from T1); llabel(,C_{20}) { capacitor(down_ 0.5*(Here.y-G.y)); rlabel(,C_{21}) resistor(right_ elen_); llabel(,R_{23}) arrow <- from last [] to (last [],G) } resistor(right_ elen_); llabel(,R_{22}) { resistor(down_ 0.5*(Here.y-G.y)); llabel(,R_{24}) capacitor(down_ to (Here,G)); llabel(,C_{22}) } capacitor(right_ dimen_); llabel(,C_{23}) { capacitor(down_ to (Here,G)); rlabel(,C_{24}) } line right_ elen_/2 Q5I: Here line right_ elen_/4 ; up_ Q5: bi_tr(,,,E) with .B at Here; rlabel(,Q_5) R27: resistor(down_ dimen_ from Q5.E); rlabel(,R_{27}) line to (Here,G) resistor(from Q5I down_ Q5I.y-R27.end.y-elen_/12); rlabel(,R_{25}) { capacitor(to (Here,G)); llabel(,C_{25}) } crossover(to (R27,Here)+(hoprad_,0),,R27) R28: resistor(right_ elen_-hoprad_); llabel(,R_{28}) resistor(down_ to (Here,G)); rlabel(,R_{30}) line to G resistor(up_ from Q5.C to (Q5.C,R18.end)); llabel(,R_{26}) line to R18.end up_ Q6: bi_tr(,,,E) with .E at (R28.end.x,Q5.E.y+(T1.y-Q4.B.y)); llabel(,,Q_6) line from Q6.B to (Q5.C,Q6.B) resistor(down_ from Q6.E to R28.end); rlabel(,R_{29}) line right_ dimen_*3/4 from Q6.C { R31: resistor(down_ elen_); circle diam dimen_*0.8 with .c at last line.c "$R_{31}$" below at last circle.sw "$V$" below at last line.c+(dimen_/4,0) } line right_ dimen_ { capacitor(down_ elen_); rlabel(,,C_{26}) line down_ elen_/4; dot; "sp_$V_{SS}$" ljust } line right_ dimen_/2 T6: transformer(down_ elen_) with .P1 at Here line from T6.P2 to R31.end {"$T_6$" at T6.n above } line right_ elen_/3 from T6.S1 inductor(down_ elen_,W) line to T6.S2 speaker(R) with .Box.w at last [].e+(dimen_/8,0) .PE