Version 4
SHEET 1 880 680
WIRE 160 80 160 48
WIRE 96 128 80 128
WIRE 224 128 160 128
WIRE 256 128 224 128
WIRE 368 128 336 128
WIRE 160 208 160 176
FLAG 368 128 0
FLAG 224 128 4
FLAG 160 48 0
FLAG 160 208 0
FLAG 80 128 0
SYMBOL res 240 144 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL npn4 96 80 R0
SYMATTR InstName Q1
SYMATTR Value NP
TEXT 248 184 Left 2 !.tran 1
TEXT 248 72 Left 2 !.model 4 NPN
TEXT 248 48 Left 2 !.model NP NPN