* SPICE netlist
Q4 N010 In+ N011 0 BC557B
Q5 N014 In- N012 0 BC557B
R4 V+ N002 680
R9 N015 N016 8k
R10 N016 OUT 120
Q2 V+ N001 N003 0 NPN
Q3 V+ N003 OUT 0 NPN
R11 N001 N003 8k
R12 N003 OUT 120
Q6 V- N015 N016 0 PNP
Q7 V- N016 OUT 0 PNP
Q1 V+ N010 N013 0 BC547C
C1 N009 N010 10p
R13 N008 N011 56
R14 N008 N012 56
R16 N017 V- 56
Q8 N010 N014 V- 0 BC547C
Q9 N014 N014 V- 0 BC547C
D6 N004 V+ 1N750
R1 N004 0 1.5k
Q10 N008 N004 N005 0 BC557B
R2 V+ N005 1k
Q11 N006 N004 N002 0 BC557B
Q12 N006 N007 N009 0 TIP31C
R3 N006 N007 3.6k
R5 N007 N009 1.5k
Q13 N009 N013 N017 0 BC547C
R6 N013 V- 510
Q14 N010 N017 V- 0 BC547C
Q15 V+ N006 N001 0 BD135
Q18 V- N009 N015 0 BD140
R7 N001 OUT 100
R8 OUT N015 100
.inc PowerTransistor.lib

* LTspice schematic (.asc)
Version 4.1
SHEET 1 1024 848
WIRE -480 -424 -496 -424
WIRE -368 -424 -480 -424
WIRE -96 -424 -368 -424
WIRE 160 -424 -96 -424
WIRE 336 -424 160 -424
WIRE 416 -424 336 -424
WIRE -368 -408 -368 -424
WIRE -96 -408 -96 -424
WIRE 160 -408 160 -424
WIRE -480 -392 -480 -424
WIRE 272 -376 256 -376
WIRE 416 -360 416 -424
WIRE -96 -312 -96 -328
WIRE 336 -312 336 -328
WIRE 352 -312 336 -312
WIRE 160 -296 160 -312
WIRE 256 -296 256 -376
WIRE 256 -296 160 -296
WIRE -160 -264 -432 -264
WIRE 256 -232 256 -296
WIRE 336 -232 336 -312
WIRE 416 -232 416 -264
WIRE -368 -216 -368 -328
WIRE -96 -200 -96 -216
WIRE -96 -200 -192 -200
WIRE 96 -200 96 -360
WIRE 96 -200 -96 -200
WIRE -480 -168 -480 -328
WIRE -432 -168 -432 -264
WIRE -432 -168 -480 -168
WIRE -480 -152 -480 -168
WIRE -96 -152 -96 -200
WIRE 160 -136 160 -296
WIRE -192 -104 -192 -120
WIRE -160 -104 -192 -104
WIRE -192 -88 -192 -104
WIRE -480 -56 -480 -72
WIRE -368 -24 -368 -120
WIRE -368 -24 -448 -24
WIRE -304 -24 -368 -24
WIRE 160 -24 160 -56
WIRE 416 -24 416 -232
WIRE 416 -24 160 -24
WIRE 512 -24 416 -24
WIRE -96 -8 -96 -56
WIRE -96 -8 -192 -8
WIRE -448 8 -448 -24
WIRE -304 8 -304 -24
WIRE 160 8 160 -24
WIRE -160 40 -176 40
WIRE -96 40 -96 -8
WIRE -16 40 -96 40
WIRE -80 88 -96 88
WIRE -176 136 -176 40
WIRE -160 136 -176 136
WIRE -448 152 -448 88
WIRE -304 152 -304 88
WIRE -16 152 -16 40
WIRE 96 152 -16 152
WIRE -96 200 -96 184
WIRE -80 200 -96 200
WIRE -96 232 -96 200
WIRE 416 232 416 -24
WIRE 416 264 416 232
WIRE -448 280 -448 248
WIRE -176 280 -176 136
WIRE -176 280 -448 280
WIRE -304 296 -304 248
WIRE -304 296 -368 296
WIRE -176 296 -176 280
WIRE 160 296 160 88
WIRE 256 296 256 232
WIRE 256 296 160 296
WIRE -448 312 -448 280
WIRE -304 312 -304 296
WIRE 160 312 160 296
WIRE 336 312 336 232
WIRE 352 312 336 312
WIRE 336 328 336 312
WIRE -16 344 -16 248
WIRE -16 344 -112 344
WIRE -368 360 -368 296
WIRE -368 360 -384 360
WIRE 96 360 96 152
WIRE 256 376 256 296
WIRE 272 376 256 376
WIRE -448 424 -448 408
WIRE -448 424 -464 424
WIRE -304 424 -304 408
WIRE -304 424 -448 424
WIRE -176 424 -176 392
WIRE -176 424 -304 424
WIRE -96 424 -96 312
WIRE -96 424 -176 424
WIRE -16 424 -96 424
WIRE 160 424 160 408
WIRE 160 424 -16 424
WIRE 336 424 160 424
WIRE 416 424 416 360
WIRE 416 424 336 424
FLAG -496 -424 V+
IOPIN -80 -464 In
FLAG -464 424 V-
IOPIN -48 384 In
FLAG -512 200 In+
IOPIN -96 160 In
FLAG -240 200 In-
IOPIN 176 160 In
FLAG 512 -24 OUT
IOPIN 928 -64 Out
FLAG -480 -56 0
FLAG -80 88 V+
IOPIN 336 48 In
SYMBOL pnp -512 248 M180
SYMATTR Value BC557B
SYMATTR InstName Q4
SYMBOL pnp -240 248 R180
SYMATTR Value BC557B
SYMATTR InstName Q5
SYMBOL res -112 -424 R0
SYMATTR InstName R4
SYMATTR Value 680
SYMBOL res 240 216 M90
SYMATTR InstName R9
SYMATTR Value 8k
SYMBOL res 320 216 M90
SYMATTR InstName R10
SYMATTR Value 120
SYMBOL npn 272 -424 R0
SYMATTR InstName Q2
SYMBOL npn 352 -360 R0
SYMATTR InstName Q3
SYMBOL res 240 -216 R270
SYMATTR InstName R11
SYMATTR Value 8k
SYMBOL res 320 -216 R270
SYMATTR InstName R12
SYMATTR Value 120
SYMBOL pnp 272 424 M180
SYMATTR InstName Q6
SYMBOL pnp 352 360 M180
SYMATTR InstName Q7
SYMBOL npn -160 88 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL cap -96 24 R90
SYMATTR InstName C1
SYMATTR Value 10p
SYMBOL res -464 -8 R0
SYMATTR InstName R13
SYMATTR Value 56
SYMBOL res -320 -8 R0
SYMATTR InstName R14
SYMATTR Value 56
SYMBOL res -32 328 R0
SYMATTR InstName R16
SYMATTR Value 56
SYMBOL npn -384 312 M0
SYMATTR InstName Q8
SYMATTR Value BC547C
SYMBOL npn -368 312 R0
SYMATTR InstName Q9
SYMATTR Value BC547C
SYMBOL diode -464 -328 R180
SYMATTR InstName D6
SYMATTR Value 1N750
SYMBOL res -496 -168 R0
SYMATTR InstName R1
SYMATTR Value 1.5k
SYMBOL pnp -432 -120 M180
SYMATTR Value BC557B
SYMATTR InstName Q10
SYMBOL res -384 -424 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL pnp -160 -216 M180
SYMATTR Value BC557B
SYMATTR InstName Q11
SYMBOL npn -160 -152 R0
SYMATTR InstName Q12
SYMATTR Value TIP31C
SYMBOL res -208 -216 R0
SYMATTR InstName R3
SYMATTR Value 3.6k
SYMBOL res -208 -104 R0
SYMATTR InstName R5
SYMATTR Value 1.5k
SYMBOL npn -80 152 R0
SYMATTR InstName Q13
SYMATTR Value BC547C
SYMBOL res -112 216 R0
SYMATTR InstName R6
SYMATTR Value 510
SYMBOL npn -112 296 M0
SYMATTR InstName Q14
SYMATTR Value BC547C
SYMBOL npn 96 -408 R0
SYMATTR InstName Q15
SYMATTR Value BD135
SYMBOL pnp 96 408 M180
SYMATTR Value BD140
SYMATTR InstName Q18
SYMBOL res 144 -152 R0
SYMATTR InstName R7
SYMATTR Value 100
SYMBOL res 144 -8 R0
SYMATTR InstName R8
SYMATTR Value 100