Version 4
SHEET 1 880 680
WIRE 192 -32 0 -32
WIRE 320 -32 192 -32
WIRE 432 -32 400 -32
WIRE 192 0 192 -32
WIRE 432 32 432 -32
WIRE 192 96 192 80
WIRE 256 96 192 96
WIRE 0 112 0 -32
WIRE 432 112 384 112
WIRE 512 112 432 112
WIRE 192 128 192 96
WIRE 256 160 256 96
WIRE 320 160 256 160
WIRE 192 224 192 192
WIRE 272 224 192 224
WIRE 576 224 576 112
WIRE 576 224 336 224
WIRE 192 240 192 224
WIRE 0 336 0 192
WIRE 192 336 192 320
WIRE 384 336 384 208
WIRE 576 336 576 304
FLAG 0 336 0
FLAG 192 336 0
FLAG 384 336 0
FLAG 576 336 0
SYMBOL voltage 0 96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL res 176 -16 R0
SYMATTR InstName R1
SYMATTR Value 470k
SYMBOL cap 176 128 R0
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL res 176 224 R0
SYMATTR InstName R2
SYMATTR Value 2k2
SYMBOL res 416 -48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 470
SYMBOL cap 576 96 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 22µ
SYMBOL npn 320 112 R0
SYMATTR InstName Q1
SYMATTR Value BC337-25
SYMBOL cap 336 208 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 22µ
SYMBOL res 560 208 R0
SYMATTR InstName R4
SYMATTR Value 2k2
SYMBOL res 416 16 R0
SYMATTR InstName R5
SYMATTR Value 100
TEXT -34 360 Left 2 !.tran 50s