Version 4
SHEET 1 880 680
WIRE 496 -96 -192 -96
WIRE -192 32 -192 -96
WIRE -160 32 -192 32
WIRE 288 96 176 96
WIRE 448 96 352 96
WIRE -144 144 -352 144
WIRE -192 176 -192 32
WIRE -80 176 -80 32
WIRE 16 176 -80 176
WIRE -144 224 -144 208
WIRE -144 224 -352 224
WIRE 16 240 16 176
WIRE 112 240 96 240
WIRE 176 240 176 96
WIRE 176 240 112 240
WIRE 288 240 256 240
WIRE 384 240 368 240
WIRE 448 240 448 96
WIRE 496 240 496 -96
WIRE 496 240 448 240
WIRE -144 288 -144 224
WIRE 496 320 496 240
WIRE 112 336 112 240
WIRE 112 464 112 400
WIRE 352 464 112 464
WIRE 496 464 496 384
WIRE 496 464 352 464
WIRE 352 496 352 464
FLAG 352 496 0
FLAG -144 288 0
SYMBOL cap 352 80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 2.3p
SYMBOL res -64 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 22MEG
SYMBOL ind 160 256 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 4874.12
SYMBOL res 384 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 35000
SYMBOL cap 448 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 3.25f
SYMBOL cap 128 400 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C3
SYMATTR Value 56p
SYMBOL cap 512 384 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 10p
SYMBOL res 112 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 220k
SYMBOL CD4069UB -144 112 R0
SYMATTR InstName U1
SYMBOL voltage -352 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 5
TEXT -370 520 Left 2 !.tran 0 4 0 0.5u\n.options method=trap\n.ic V(b)=0\n.options plotwinsize=0