Version 4
SHEET 1 880 680
WIRE 464 80 448 80
WIRE 96 96 80 96
WIRE 464 96 464 80
WIRE 96 112 96 96
WIRE 400 144 384 144
WIRE 32 160 16 160
WIRE 464 208 464 192
WIRE 96 224 96 208
WIRE 464 288 448 288
WIRE 464 304 464 288
WIRE 32 336 16 336
WIRE 240 352 224 352
WIRE 400 352 384 352
WIRE 16 368 16 336
WIRE 224 368 224 352
WIRE 464 416 464 400
FLAG 16 448 0
FLAG 32 336 b
IOPIN 32 336 Out
FLAG 96 224 0
FLAG 96 96 VCC
FLAG 16 160 b
IOPIN 16 160 In
FLAG 464 208 0
FLAG 464 80 VCC
FLAG 384 144 b
IOPIN 384 144 In
FLAG 464 416 0
FLAG 464 288 VCC
FLAG 384 352 b
IOPIN 384 352 In
FLAG 224 448 0
FLAG 224 352 VCC
SYMBOL voltage 16 352 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 1V
SYMBOL npn 32 112 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222 temp=100
SYMBOL npn 400 96 R0
SYMATTR InstName Q2
SYMATTR Value 2N2222 temp=25
SYMBOL npn 400 304 R0
SYMATTR InstName Q3
SYMATTR Value 2N2222 temp=-25
SYMBOL voltage 224 352 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 6V
TEXT 446 476 Left 0 !.dc V1 0V 2V 10mV