Version 4.1
SHEET 1 880 680
WIRE 208 -16 48 -16
WIRE 256 -16 208 -16
WIRE 368 -16 256 -16
WIRE 464 -16 368 -16
WIRE 256 32 256 -16
WIRE 208 48 208 -16
WIRE 48 112 48 -16
WIRE 368 112 368 64
WIRE 400 112 368 112
WIRE 208 160 208 112
WIRE 256 160 256 112
WIRE 256 160 208 160
WIRE 304 160 256 160
WIRE 256 176 256 160
WIRE 464 208 464 160
WIRE 464 208 368 208
WIRE 48 288 48 192
WIRE 256 288 256 240
FLAG 48 288 0
FLAG 464 288 0
FLAG 256 288 0
SYMBOL voltage 48 96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 108 Left 2
SYMATTR SpiceLine Cpar=470u
SYMATTR InstName V1
SYMATTR Value PULSE(0 11 0.2 10n 10n 0.75 1)
SYMBOL res 240 16 R0
WINDOW 0 20 48 Left 2
WINDOW 3 12 79 Left 2
SYMATTR InstName R1
SYMATTR Value 470k
SYMBOL cap 240 176 R0
SYMATTR InstName C1
SYMATTR Value 4µ7
SYMBOL npn 304 112 R0
SYMATTR InstName Q1
SYMATTR Value 2N3019
SYMBOL res 352 -32 R0
WINDOW 0 1 64 Left 2
WINDOW 3 11 79 Left 2
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL npn 400 64 R0
SYMATTR InstName Q2
SYMATTR Value 2N3019
SYMBOL res 480 80 R180
WINDOW 0 15 46 Left 2
WINDOW 3 3 32 Left 2
SYMATTR InstName R4
SYMATTR Value 862
SYMBOL res 448 192 R0
WINDOW 0 1 64 Left 2
WINDOW 3 11 79 Left 2
SYMATTR InstName R5
SYMATTR Value 47
SYMBOL schottky 224 112 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value BAT54
TEXT 72 224 Left 2 !.tran 2