* SPICE netlist
R1 0 VB 76.8k
R2 VB N008 57.6k
R3 VE N008 8.06k
VEE1 N008 0 -5
Q6 VO2 VB VE 0 My2n3904
Q3 VO2 Vo1 N001 0 My2n3906
R4 0 VB 76.8k
R5 VB N009 57.6k
R6 VE N009 8.06k
VEE2 N009 0 -5
Q7 VO VB VE 0 My2n3904
Q4 N001 VO2 VO 0 My2n3904
R7 0 N005 76.8k
R8 N005 N007 57.6k
R9 N006 N007 8.06k
VCC3 N001 0 5
Q1 N002 N003 VE 0 My2n3904
Q2 Vo1 N004 VE 0 My2n3904
V1 N003 0 0 AC 0.001 0
Q5 VE N005 N006 0 My2n3904
VEE3 N007 0 -5
V2 N004 0 0 AC 0.001 180
Q9 N002 N002 N001 0 My2n3906
Q8 Vo1 N002 N001 0 My2n3906
Ix 0 VO 0
+IS=1.26532e-10 BF=206.302 NF=1.5 VAF=1000
+IKF=0.0272221 ISE=2.30771e-09 NE=3.31052 BR=20.6302
+NR=2.89609 VAR=9.39809 IKR=0.272221 ISC=2.30771e-09
+NC=1.9876 RB=5.8376 IRB=50.3624 RBM=0.634251
+RE=0.0001 RC=2.65711 XTB=0.1 XTI=1
+EG=1.05 CJE=4.64214e-12 VJE=0.4 MJE=0.256227
+TF=4.19578e-10 XTF=0.906167 VTF=8.75418 ITF=0.0105823
+CJC=3.76961e-12 VJC=0.4 MJC=0.238109 XCJC=0.8
+FC=0.512134 CJS=0 VJS=0.75 MJS=0.5
+TR=6.82023e-08 PTF=0 KF=0 AF=1
;dc V1 -0.25 0.25 0.001
+IS=7.75521e-12 BF=194.093 NF=1.35509 VAF=156.436
+IKF=0.0660057 ISE=1.88546e-12 NE=1.81673 BR=3.41317
+NR=1.5 VAR=5.86061 IKR=1.70599 ISC=7.64281e-10
+NC=1.92376 RB=6.48961 IRB=0.1 RBM=0.1
+RE=0.0001 RC=2.45044 XTB=0.1 XTI=1
+EG=1.05 CJE=6.11928e-12 VJE=0.4 MJE=0.248812
+TF=5.21843e-10 XTF=0.932702 VTF=9.1046 ITF=0.0106472
+CJC=6.85007e-12 VJC=0.4 MJC=0.279018 XCJC=0.9
+FC=0.478887 CJS=0 VJS=0.75 MJS=0.5
+TR=4.30605e-07 PTF=0 KF=0 AF=1

* LTspice schematic (.asc)
Version 4
SHEET 1 2320 1648
WIRE -808 -824 -1112 -824
WIRE -504 -824 -808 -824
WIRE 216 -824 -504 -824
WIRE 888 -824 216 -824
WIRE -1112 -776 -1112 -824
WIRE -1112 -632 -1112 -696
WIRE -808 -568 -808 -824
WIRE -504 -568 -504 -824
WIRE -648 -520 -744 -520
WIRE -568 -520 -648 -520
WIRE 216 -408 216 -824
WIRE -808 -360 -808 -472
WIRE -648 -360 -648 -520
WIRE -648 -360 -808 -360
WIRE -504 -360 -504 -472
WIRE 152 -360 -504 -360
WIRE 888 -248 888 -824
WIRE -808 -232 -808 -360
WIRE -504 -232 -504 -360
WIRE 216 -200 216 -312
WIRE 824 -200 216 -200
WIRE -872 -184 -1160 -184
WIRE -312 -184 -440 -184
WIRE -1160 -104 -1160 -184
WIRE -312 -104 -312 -184
WIRE -808 -40 -808 -136
WIRE -648 -40 -808 -40
WIRE -504 -40 -504 -136
WIRE -504 -40 -648 -40
WIRE 888 -24 888 -152
WIRE 1144 -24 888 -24
WIRE 216 -8 216 -200
WIRE -1160 24 -1160 -24
WIRE -312 24 -312 -24
WIRE -56 40 -232 40
WIRE 1144 88 1144 -24
WIRE -968 120 -1096 120
WIRE 888 120 888 -24
WIRE 568 152 456 152
WIRE -1096 168 -1096 120
WIRE -968 168 -968 120
WIRE -232 168 -232 40
WIRE -56 168 -56 40
WIRE 456 216 456 152
WIRE 568 216 568 152
WIRE 1144 232 1144 168
WIRE -648 264 -648 -40
WIRE -968 312 -968 248
WIRE -712 312 -968 312
WIRE 216 312 216 -8
WIRE 888 312 888 120
WIRE -56 360 -56 248
WIRE 72 360 -56 360
WIRE 152 360 72 360
WIRE 568 360 568 296
WIRE 728 360 568 360
WIRE 824 360 728 360
WIRE -968 376 -968 312
WIRE -648 440 -648 360
WIRE 216 440 216 408
WIRE 888 456 888 408
WIRE -56 472 -56 360
WIRE 216 472 216 440
WIRE 568 472 568 360
WIRE 888 472 888 456
WIRE -968 600 -968 456
WIRE -648 600 -648 520
WIRE -648 600 -968 600
WIRE -56 600 -56 552
WIRE 216 600 216 552
WIRE 216 600 -56 600
WIRE 568 600 568 552
WIRE 888 600 888 552
WIRE 888 600 568 600
WIRE -648 664 -648 600
WIRE 216 664 216 600
WIRE 888 680 888 600
WIRE -648 776 -648 744
WIRE 888 808 888 760
WIRE 216 824 216 744
FLAG -232 168 0
FLAG 216 824 0
FLAG 72 360 VB
FLAG 216 -8 VO2
FLAG 216 440 VE
FLAG 456 216 0
FLAG 888 808 0
FLAG 728 360 VB
FLAG 888 120 VO
FLAG 888 456 VE
FLAG -1112 -632 0
FLAG -1160 24 0
FLAG -1096 168 0
FLAG -648 776 0
FLAG -648 -40 VE
FLAG -504 -360 Vo1
FLAG -312 24 0
FLAG 1144 232 0
FLAG 1160 232 X1
SYMBOL res -72 152 R0
SYMATTR InstName R1
SYMATTR Value 76.8k
SYMBOL res -72 456 R0
SYMATTR InstName R2
SYMATTR Value 57.6k
SYMBOL res 200 456 R0
SYMATTR InstName R3
SYMATTR Value 8.06k
SYMBOL voltage 216 648 R0
SYMATTR InstName VEE1
SYMATTR Value -5
SYMBOL npn 152 312 R0
SYMATTR InstName Q6
SYMATTR Value My2n3904
SYMBOL pnp 152 -312 M180
SYMATTR InstName Q3
SYMATTR Value My2n3906
SYMBOL res 552 200 R0
SYMATTR InstName R4
SYMATTR Value 76.8k
SYMBOL res 552 456 R0
SYMATTR InstName R5
SYMATTR Value 57.6k
SYMBOL res 872 456 R0
SYMATTR InstName R6
SYMATTR Value 8.06k
SYMBOL voltage 888 664 R0
SYMATTR InstName VEE2
SYMATTR Value -5
SYMBOL npn 824 312 R0
SYMATTR InstName Q7
SYMATTR Value My2n3904
SYMBOL npn 824 -248 R0
SYMATTR InstName Q4
SYMATTR Value My2n3904
SYMBOL res -984 152 R0
SYMATTR InstName R7
SYMATTR Value 76.8k
SYMBOL res -984 360 R0
SYMATTR InstName R8
SYMATTR Value 57.6k
SYMBOL res -664 424 R0
SYMATTR InstName R9
SYMATTR Value 8.06k
SYMBOL voltage -1112 -792 R0
SYMATTR InstName VCC3
SYMATTR Value 5
SYMBOL npn -872 -232 R0
SYMATTR InstName Q1
SYMATTR Value My2n3904
SYMBOL npn -440 -232 M0
SYMATTR InstName Q2
SYMATTR Value My2n3904
SYMBOL voltage -1160 -120 R0
SYMATTR InstName V1
SYMATTR Value 0
SYMATTR Value2 AC 0.001 0
SYMBOL npn -712 264 R0
SYMATTR InstName Q5
SYMATTR Value My2n3904
SYMBOL voltage -648 648 R0
SYMATTR InstName VEE3
SYMATTR Value -5
SYMBOL voltage -312 -120 R0
SYMATTR InstName V2
SYMATTR Value 0
SYMATTR Value2 AC 0.001 180
SYMBOL pnp -744 -472 R180
SYMATTR InstName Q9
SYMATTR Value My2n3906
SYMBOL pnp -568 -472 M180
SYMATTR InstName Q8
SYMATTR Value My2n3906
SYMBOL current 1144 168 R180
SYMATTR InstName Ix
SYMATTR Value 0