Version 4
SHEET 1 880 680
WIRE 80 -448 -208 -448
WIRE -208 -320 -208 -448
WIRE -208 -128 -208 -240
WIRE 80 -64 80 -448
WIRE 240 -64 80 -64
WIRE 400 -64 320 -64
WIRE 80 0 80 -64
WIRE 400 32 400 -64
WIRE -208 208 -208 -48
WIRE 80 208 80 80
WIRE 80 208 -208 208
WIRE 400 208 400 96
WIRE 400 208 80 208
WIRE 80 224 80 208
FLAG 80 224 0
SYMBOL res 336 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 64 -16 R0
SYMATTR InstName R2
SYMATTR Value 1
SYMBOL cap 384 32 R0
SYMATTR InstName C1
SYMATTR Value 1000
SYMBOL voltage -208 -144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 1
SYMBOL voltage -208 -336 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value SFFM(0 0.2 50 10 10)
TEXT 46 248 Left 2 !.tran 1