* SPICE netlist
Q1 N006 N005 N002 0 2N3906
Q3 N005 N002 VCC 0 2N3906
R6 VCC N002 1k
V1 VCC 0 6
R8 N005 0 20k
Q5 N003 N006 N007 0 2N3904
R11 N007 VOUT 1R
R12 VOUT N012 1R
Q6 N015 N013 N012 0 2N3906
VIN1 N008 0 PULSE(0 3.3 0 100n 100n 0.2ms 0.4ms 7)
R9 N014 0 2k
R14 N008 N011 5k
R16 P001 0 10R
Q4 N014 N010 N009 0 2N3906
Q7 0 N011 N009 0 2N3906
Q8 N013 N014 P001 0 2N3904
Q2 N009 N004 N001 0 2N3906
Q9 N004 N001 VCC 0 2N3906
R1 VCC N001 1k
R2 N004 0 20k
D1 N006 P002 D
D2 P002 N013 D
C1 VOUT N011 3n
VIN2 N010 0 1.6
R3 VCC N003 270
R4 N015 0 270
Q10 N007 N003 VCC 0 MJE15035
Q11 N012 N015 0 0 MJE15034
R5 VOUT 0 10R
C3 N013 N014 20p
.tran 3ms
.include standard.bjt

* LTspice schematic (.asc)
Version 4
SHEET 1 1776 1200
WIRE -888 -424 -888 -504
WIRE -376 -408 -440 -408
WIRE -296 -408 -376 -408
WIRE -120 -408 -296 -408
WIRE 152 -408 -120 -408
WIRE 328 -408 152 -408
WIRE 568 -408 328 -408
WIRE 760 -408 568 -408
WIRE -120 -376 -120 -408
WIRE 328 -376 328 -408
WIRE 760 -376 760 -408
WIRE -184 -328 -296 -328
WIRE 264 -328 152 -328
WIRE 696 -328 568 -328
WIRE -120 -280 -232 -280
WIRE 328 -280 216 -280
WIRE -120 -232 -120 -280
WIRE 328 -232 328 -280
WIRE 568 -168 568 -328
WIRE -120 -120 -120 -152
WIRE 152 -120 152 -232
WIRE 504 -120 152 -120
WIRE 760 -72 760 -280
WIRE 760 -72 568 -72
WIRE -216 -40 -664 -40
WIRE 872 8 760 8
WIRE 888 8 872 8
WIRE 872 56 872 8
WIRE 760 72 760 8
WIRE -296 88 -296 -232
WIRE -296 88 -456 88
WIRE -520 136 -664 136
WIRE -136 136 -136 -40
WIRE -136 136 -232 136
WIRE -120 136 -136 136
WIRE -40 136 -56 136
WIRE 760 152 568 152
WIRE 152 200 152 8
WIRE 472 200 152 200
WIRE 504 200 472 200
WIRE 152 296 152 200
WIRE 152 296 24 296
WIRE 24 360 24 296
WIRE 152 376 152 296
WIRE 472 408 472 200
WIRE -456 424 -456 184
WIRE 24 424 -456 424
WIRE 88 424 24 424
WIRE 760 424 760 152
WIRE 568 472 568 248
WIRE 568 472 472 472
WIRE 696 472 568 472
WIRE -456 552 -456 504
WIRE -296 552 -296 184
WIRE -296 552 -456 552
WIRE 152 552 -296 552
WIRE 328 552 328 -152
WIRE 328 552 152 552
WIRE 568 552 328 552
WIRE 760 552 760 520
WIRE 760 552 568 552
WIRE 568 600 568 552
FLAG -888 -584 VCC
FLAG 888 8 VOUT
FLAG -664 40 0
FLAG -376 -408 VCC
FLAG -40 136 VOUT
FLAG -120 -120 0
FLAG 568 600 0
FLAG -888 -424 0
FLAG -664 216 0
FLAG 872 136 0
SYMBOL pnp 216 -232 R180
SYMATTR InstName Q1
SYMATTR Value 2N3906
SYMBOL pnp 264 -280 M180
SYMATTR InstName Q3
SYMATTR Value 2N3906
SYMBOL res 136 -424 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL voltage -888 -600 R0
SYMATTR Value 6
SYMATTR InstName V1
SYMBOL res 312 -248 R0
SYMATTR InstName R8
SYMATTR Value 20k
SYMBOL npn 504 -168 R0
SYMATTR InstName Q5
SYMATTR Value 2N3904
SYMBOL res 744 -88 R0
SYMATTR InstName R11
SYMATTR Value 1R
SYMBOL res 744 56 R0
SYMATTR InstName R12
SYMATTR Value 1R
SYMBOL pnp 504 248 M180
SYMATTR InstName Q6
SYMATTR Value 2N3906
SYMBOL voltage -664 -56 R0
SYMATTR Value PULSE(0 3.3 0 100n 100n 0.2ms 0.4ms 7)
SYMATTR InstName VIN1
SYMBOL res -472 408 R0
SYMATTR InstName R9
SYMATTR Value 2k
SYMBOL res -232 -24 R270
SYMATTR InstName R14
SYMATTR Value 5k
SYMBOL res 136 456 R0
SYMATTR InstName R16
SYMATTR Value 10R
SYMBOL pnp -520 184 M180
SYMATTR Value 2N3906
SYMATTR InstName Q4
SYMBOL pnp -232 184 R180
SYMATTR Value 2N3906
SYMATTR InstName Q7
SYMBOL npn 88 376 R0
SYMATTR InstName Q8
SYMATTR Value 2N3904
SYMBOL pnp -232 -232 R180
SYMATTR InstName Q2
SYMATTR Value 2N3906
SYMBOL pnp -184 -280 M180
SYMATTR InstName Q9
SYMATTR Value 2N3906
SYMBOL res -312 -424 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -136 -248 R0
SYMATTR InstName R2
SYMATTR Value 20k
SYMBOL diode 136 -120 R0
SYMATTR InstName D1
SYMBOL diode 136 -56 R0
SYMATTR InstName D2
SYMBOL cap -56 120 R90
SYMATTR InstName C1
SYMATTR Value 3n
SYMBOL voltage -664 120 R0
SYMATTR Value 1.6
SYMATTR InstName VIN2
SYMBOL res 552 -424 R0
SYMATTR InstName R3
SYMATTR Value 270
SYMBOL res 552 456 R0
SYMATTR InstName R4
SYMATTR Value 270
SYMBOL pnp 696 -280 M180
SYMATTR InstName Q10
SYMATTR Value MJE15035
SYMBOL npn 696 424 R0
SYMATTR InstName Q11
SYMATTR Value MJE15034
SYMBOL res 856 40 R0
SYMATTR InstName R5
SYMATTR Value 10R
SYMBOL cap 8 360 R0
SYMATTR InstName C3
SYMATTR Value 20p