Version 4
SHEET 1 880 680
WIRE 112 -192 -272 -192
WIRE 224 -192 112 -192
WIRE 224 -176 224 -192
WIRE 112 -128 112 -192
WIRE 224 -80 224 -96
WIRE 224 -80 176 -80
WIRE 224 -32 224 -80
WIRE -272 0 -272 -192
WIRE 112 16 112 -32
WIRE 160 16 112 16
WIRE 112 32 112 16
WIRE 112 128 112 112
WIRE 224 128 224 64
WIRE 224 128 112 128
WIRE 224 144 224 128
WIRE -272 240 -272 80
WIRE 224 240 224 224
WIRE 224 240 -272 240
WIRE -272 272 -272 240
FLAG -272 272 0
SYMBOL npn 160 -32 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222 off
SYMBOL pnp 176 -32 R180
WINDOW 0 71 34 Left 2
WINDOW 3 71 68 Left 2
SYMATTR InstName Q2
SYMATTR Value 2N2907
SYMBOL Misc\\EuropeanResistor 96 16 R0
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL Misc\\EuropeanResistor 208 128 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL voltage -272 -16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL Misc\\EuropeanResistor 208 -192 R0
SYMATTR InstName R3
SYMATTR Value 100k
TEXT -272 -280 Left 2 ;.tran 1
TEXT -272 -312 Left 2 !.tran 0 1 0 10m
TEXT -272 -248 Left 2 ;.options plotwinsize=0
TEXT 376 -56 Left 4 ;off
LINE Normal 352 16 400 -32 2
LINE Normal 368 16 352 16 2
LINE Normal 352 16 368 16 2
LINE Normal 352 0 352 16 2