Version 4
SHEET 1 880 680
WIRE -128 -112 -240 -112
WIRE 0 -112 -128 -112
WIRE -240 -80 -240 -112
WIRE -128 -80 -128 -112
WIRE 0 -80 0 -112
WIRE -240 32 -240 0
WIRE 0 32 0 0
WIRE 64 32 0 32
WIRE 0 96 0 32
WIRE -336 144 -400 144
WIRE -240 144 -256 144
WIRE -128 144 -128 0
WIRE -128 144 -176 144
WIRE -64 144 -128 144
WIRE -400 192 -400 144
WIRE 0 224 0 192
WIRE 96 224 0 224
WIRE -128 240 -128 144
WIRE 0 240 0 224
WIRE 96 256 96 224
WIRE -400 352 -400 272
WIRE -128 352 -128 320
WIRE -128 352 -400 352
WIRE 0 352 0 320
WIRE 0 352 -128 352
WIRE 96 352 96 320
WIRE 96 352 0 352
WIRE -400 368 -400 352
FLAG -400 368 0
FLAG -240 32 0
FLAG 64 32 out
SYMBOL npn -64 96 R0
SYMATTR InstName Q1
SYMATTR Value {N}
SYMBOL voltage -400 176 R0
SYMATTR InstName V1
SYMATTR Value AC 1
SYMBOL Misc\\EuropeanResistor -16 -96 R0
SYMATTR InstName R1
SYMATTR Value 330
SYMBOL Misc\\EuropeanResistor -144 224 R0
SYMATTR InstName R2
SYMATTR Value 2.2k
SYMBOL Misc\\EuropeanResistor -144 -96 R0
SYMATTR InstName R3
SYMATTR Value 8.2k
SYMBOL Misc\\EuropeanResistor -352 160 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL Misc\\EuropeanResistor -16 224 R0
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL cap 80 256 R0
SYMATTR InstName C1
SYMATTR Value 10u
SYMBOL voltage -240 -96 R0
SYMATTR InstName V2
SYMATTR Value 9
SYMBOL cap -176 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 1u
TEXT -16 -344 Left 2 !.model 1 ako: 2N3904\n.model 2 ako: BC547B\n.model 3 ako: 2N2222
TEXT -368 -344 Left 2 !.step param N 1 3 1
TEXT -368 -272 Left 2 !.ac dec 100 1k 10Meg
TEXT -368 -320 Left 2 ;.param N=1