Version 4
SHEET 1 1132 680
WIRE 288 -112 80 -112
WIRE 864 -112 656 -112
WIRE 80 -64 80 -112
WIRE 656 -64 656 -112
WIRE 80 96 80 16
WIRE 656 96 656 16
WIRE -80 144 -80 16
WIRE 16 144 -80 144
WIRE 496 144 496 16
WIRE 592 144 496 144
WIRE 656 224 656 192
WIRE 656 224 576 224
WIRE -80 240 -80 144
WIRE 496 240 496 144
WIRE 656 240 656 224
WIRE 80 288 80 192
WIRE 80 288 -16 288
WIRE 576 288 576 224
WIRE 576 288 560 288
WIRE 592 288 576 288
WIRE 80 304 80 288
WIRE 288 320 288 -112
WIRE 864 320 864 -112
WIRE -80 384 -80 336
WIRE 0 384 -80 384
WIRE 80 384 80 368
WIRE 80 384 0 384
WIRE 496 384 496 336
WIRE 576 384 496 384
WIRE 656 384 656 336
WIRE 656 384 576 384
FLAG -80 -64 0
FLAG 0 384 0
FLAG 288 384 0
FLAG 496 -64 0
FLAG 576 384 0
FLAG 864 384 0
SYMBOL npn -16 240 M0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL diode 64 304 R0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL current -80 -64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value 1e-3
SYMBOL Misc\\cell 288 320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL npn 16 96 R0
SYMATTR InstName Q4
SYMATTR Value 2N2222
SYMBOL res 64 -80 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL npn 560 240 M0
SYMATTR InstName Q2
SYMATTR Value 2N2222
SYMBOL current 496 -64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I2
SYMATTR Value 1e-3
SYMBOL Misc\\cell 864 320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 10
SYMBOL npn 592 96 R0
SYMATTR InstName Q3
SYMATTR Value 2N2222
SYMBOL res 640 -80 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL npn 592 240 R0
SYMATTR InstName Q5
SYMATTR Value 2N2222
TEXT -370 344 Left 2 !.tran 1