Version 4
SHEET 1 924 680
WIRE 64 -32 -64 -32
WIRE 208 -32 64 -32
WIRE 448 -32 208 -32
WIRE 608 -32 448 -32
WIRE -64 0 -64 -32
WIRE 448 0 448 -32
WIRE 64 32 64 -32
WIRE 208 32 208 -32
WIRE 608 96 608 -32
WIRE -64 112 -64 80
WIRE 208 144 208 112
WIRE 544 144 208 144
WIRE -208 192 -256 192
WIRE -64 192 -128 192
WIRE 64 192 64 112
WIRE 64 192 0 192
WIRE 144 192 64 192
WIRE 704 192 608 192
WIRE 848 192 768 192
WIRE -256 224 -256 192
WIRE 848 240 848 192
WIRE 64 256 64 192
WIRE 608 256 608 192
WIRE 208 272 208 240
WIRE 448 304 448 80
WIRE 544 304 448 304
WIRE -256 336 -256 304
WIRE 448 336 448 304
WIRE 848 368 848 320
WIRE 64 384 64 336
WIRE 208 384 208 352
WIRE 336 384 208 384
WIRE 608 384 608 352
WIRE 208 400 208 384
WIRE 336 416 336 384
WIRE 448 416 448 400
WIRE 208 512 208 480
WIRE 336 512 336 480
WIRE 448 512 448 480
WIRE 608 512 608 464
FLAG 848 368 0
FLAG 208 512 0
FLAG 64 384 0
FLAG -256 336 0
FLAG -64 112 0
FLAG 336 512 0
FLAG 448 512 0
FLAG 608 512 0
SYMBOL npn 144 144 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL res 192 16 R0
SYMATTR InstName R1
SYMATTR Value 5k
SYMBOL res 192 256 R0
SYMATTR InstName R2
SYMATTR Value 200
SYMBOL res 832 224 R0
SYMATTR InstName R4
SYMBOL res 48 16 R0
SYMATTR InstName R5
SYMATTR Value 186840
SYMBOL res 48 240 R0
SYMATTR InstName R6
SYMATTR Value 125733
SYMBOL res -112 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 50
SYMBOL cap 0 176 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1µf
SYMBOL cap 768 176 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMBOL voltage -256 208 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 38 92 Left 2
SYMATTR Value2 AC 5m
SYMATTR Value ""
SYMATTR InstName V1
SYMBOL voltage -64 -16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL res 192 384 R0
SYMATTR InstName R7
SYMATTR Value 4800
SYMBOL cap 320 416 R0
SYMATTR InstName C3
SYMBOL npn 544 96 R0
SYMATTR InstName Q2
SYMATTR Value 2N2222
SYMBOL npn 544 256 R0
SYMATTR InstName Q3
SYMATTR Value 2N2222
SYMBOL diode 432 416 R0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 432 336 R0
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL res 432 -16 R0
SYMATTR InstName R8
SYMATTR Value 20k
SYMBOL res 592 368 R0
SYMATTR InstName R9
SYMATTR Value 100
TEXT -312 152 Left 2 !;op
TEXT -352 120 Left 2 !;ac dec 10 10 10meg
TEXT -336 80 Left 2 !.tran 0 5ms 0 .01u