Version 4
SHEET 1 1244 680
WIRE 624 -176 576 -176
WIRE 736 -176 688 -176
WIRE 896 -176 736 -176
WIRE 1024 -176 896 -176
WIRE 1152 -176 1104 -176
WIRE 736 -128 736 -176
WIRE 896 -80 896 -176
WIRE 480 -64 -208 -64
WIRE 480 -32 480 -64
WIRE 576 -16 576 -176
WIRE 624 -16 576 -16
WIRE 736 -16 736 -64
WIRE 736 -16 688 -16
WIRE 0 48 -96 48
WIRE 576 48 576 -16
WIRE 896 48 896 0
WIRE 992 48 896 48
WIRE 0 96 0 48
WIRE 480 96 480 48
WIRE 896 96 896 48
WIRE 480 144 480 96
WIRE 576 144 576 112
WIRE 576 144 480 144
WIRE 624 144 576 144
WIRE 736 144 736 -16
WIRE 736 144 688 144
WIRE -208 160 -208 -64
WIRE -96 160 -96 48
WIRE 0 192 0 176
WIRE 80 192 0 192
WIRE 160 192 80 192
WIRE 288 192 224 192
WIRE 416 192 288 192
WIRE 0 208 0 192
WIRE 736 224 736 144
WIRE 288 240 288 192
WIRE 80 288 80 192
WIRE 224 288 80 288
WIRE -208 352 -208 240
WIRE -96 352 -96 240
WIRE 0 352 0 288
WIRE 288 352 288 336
WIRE 480 352 480 240
WIRE 736 352 736 288
WIRE 896 352 896 176
FLAG -96 352 0
FLAG 0 352 0
FLAG 288 352 0
FLAG 480 352 0
FLAG -208 352 0
FLAG 736 352 0
FLAG 896 352 0
FLAG 1152 -176 vo
FLAG 992 48 vr
FLAG 480 96 vc
SYMBOL res -16 80 R0
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL res -16 192 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL voltage -96 144 R0
WINDOW 3 -79 -133 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(0 3 0 10n 10n 30us 74us)
SYMBOL diode 160 208 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL pnp 224 336 M180
SYMATTR InstName Q1
SYMATTR Value 2N2907
SYMBOL npn 416 144 R0
SYMATTR InstName Q2
SYMATTR Value MPSA42
SYMBOL ind 464 -48 R0
SYMATTR InstName L1
SYMATTR Value 2.2m
SYMATTR SpiceLine Rser=10
SYMBOL voltage -208 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 124 Left 2
SYMATTR InstName V2
SYMATTR Value 3
SYMATTR SpiceLine Rser=0
SYMBOL diode 624 160 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMATTR Value RFU02VS8S
SYMBOL cap 560 48 R0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL diode 688 -32 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMATTR Value RFU02VS8S
SYMBOL cap 720 -128 R0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL diode 624 -160 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D4
SYMATTR Value RFU02VS8S
SYMBOL cap 720 224 R0
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL res 880 -96 R0
SYMATTR InstName R3
SYMATTR Value 10000k
SYMBOL res 880 80 R0
SYMATTR InstName R4
SYMATTR Value 47k
SYMBOL res 1120 -192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10000k
TEXT -242 376 Left 2 !.tran 100m
TEXT 200 128 Left 2 !.include MPSA42.LIB