Version 4
SHEET 1 880 680
WIRE 448 16 176 16
WIRE 176 32 176 16
WIRE 176 32 112 32
WIRE 240 32 176 32
WIRE 288 112 240 112
WIRE 384 112 352 112
WIRE 448 112 448 16
WIRE 48 160 16 160
WIRE 112 160 112 112
WIRE 176 160 112 160
WIRE 16 176 16 160
WIRE 112 208 112 160
WIRE 320 208 240 208
WIRE 16 288 16 256
WIRE 112 288 16 288
WIRE 176 288 112 288
WIRE 240 288 176 288
WIRE 112 304 112 288
WIRE 176 304 176 288
WIRE 448 304 448 192
WIRE 448 304 176 304
FLAG 112 304 0
FLAG 384 288 0
FLAG 384 32 0
SYMBOL npn 176 112 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL res 224 16 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 96 192 R0
SYMATTR InstName R3
SYMATTR Value 3k
SYMBOL res 96 16 R0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL voltage 448 96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR SpiceLine Rser=1
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 112 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL cap 352 96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL voltage 16 160 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 0.01
SYMATTR InstName V2
SYMATTR Value SINE(0 0.01 1000 0 0 0 10)
SYMBOL res 224 192 R0
SYMATTR InstName R2
SYMATTR Value 4k
SYMBOL cap 384 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 2µ
SYMBOL res 368 16 R0
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL res 368 192 R0
SYMATTR InstName R6
SYMATTR Value 100k
TEXT -16 328 Left 2 !.ac dec 5 10 100000000
TEXT -16 344 Left 2 !;tran 0 0.01 0.0 0.0001
TEXT -16 360 Left 2 !;tran 0 0.01 0 0.00001