Version 4
SHEET 1 880 680
WIRE 288 -144 192 -144
WIRE 688 -144 288 -144
WIRE 192 -48 192 -144
WIRE 288 -48 288 -144
WIRE 416 -48 384 -48
WIRE 672 -48 656 -48
WIRE 688 -48 688 -144
WIRE 688 -48 672 -48
WIRE 64 -16 0 -16
WIRE 192 32 192 16
WIRE 288 32 192 32
WIRE 0 80 0 -16
WIRE 384 80 384 -48
WIRE 192 96 192 32
WIRE 688 112 688 -48
WIRE 64 144 64 64
WIRE 128 144 64 144
WIRE 0 224 0 160
WIRE 192 224 192 192
WIRE 192 224 0 224
WIRE 384 224 384 160
WIRE 384 224 192 224
WIRE 544 224 544 48
WIRE 544 224 384 224
WIRE 688 224 688 176
WIRE 688 224 544 224
WIRE 192 240 192 224
FLAG 192 240 0
SYMBOL voltage 0 64 R0
WINDOW 3 -109 224 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 -111 125 Left 0
SYMATTR Value PULSE(0 5 20u 1u 1u 20u 130u 15)
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName V1
SYMBOL voltage 384 64 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 132 Left 0
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName V2
SYMATTR Value 8
SYMBOL npn 128 96 R0
SYMATTR InstName Q1
SYMATTR Value BC847B
SYMBOL res 48 -32 R0
SYMATTR InstName R1
SYMATTR Value 4k7
SYMBOL cap 176 -48 R0
WINDOW 0 46 23 Left 0
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL res 272 -64 R0
SYMATTR InstName R2
SYMATTR Value 150
SYMBOL PowerProducts\\LT1086-5 544 -48 R0
SYMATTR InstName U1
SYMBOL cap 672 112 R0
SYMATTR InstName C2
SYMATTR Value 10µ
TEXT -112 312 Left 0 !.tran 0 1m 0 1n